Home / 15,417.81-21,276.57-8,344.23

Finding the Fourth Proportional to 15,417.81, 21,276.57 and 8,344.23

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Solution

The fourth proportional to 15,417.81, 21,276.57 and 8,344.23 is: 11,515.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,417.81 : 21,276.57 = 8,344.23 : x
  2. Step 2: Convert to fraction form
    15,417.81/21,276.57 = 8,344.23/x
  3. Step 3: Cross multiply
    15,417.81x = 21,276.57 × 8,344.23
  4. Step 4: Simplify right side
    15,417.81x = 177,536,545.19
  5. Step 5: Solve for x
    x = 177,536,545.19/15,417.81
  6. Step 6: Final answer
    x = 11,515.03

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Double scale
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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.