Home / 15,417.69-21,276.57-8,344.26

Finding the Fourth Proportional to 15,417.69, 21,276.57 and 8,344.26

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Solution

The fourth proportional to 15,417.69, 21,276.57 and 8,344.26 is: 11,515.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,417.69 : 21,276.57 = 8,344.26 : x
  2. Step 2: Convert to fraction form
    15,417.69/21,276.57 = 8,344.26/x
  3. Step 3: Cross multiply
    15,417.69x = 21,276.57 × 8,344.26
  4. Step 4: Simplify right side
    15,417.69x = 177,537,227.29
  5. Step 5: Solve for x
    x = 177,537,227.29/15,417.69
  6. Step 6: Final answer
    x = 11,515.17

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Half scale
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Double scale
Find fourth proportional to 15,418.69, 21,277.95 and 8,345.26
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.