Home / 15,465.69-21,342.76-8,392.23

Finding the Fourth Proportional to 15,465.69, 21,342.76 and 8,392.23

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Solution

The fourth proportional to 15,465.69, 21,342.76 and 8,392.23 is: 11,581.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,465.69 : 21,342.76 = 8,392.23 : x
  2. Step 2: Convert to fraction form
    15,465.69/21,342.76 = 8,392.23/x
  3. Step 3: Cross multiply
    15,465.69x = 21,342.76 × 8,392.23
  4. Step 4: Simplify right side
    15,465.69x = 179,113,329.77
  5. Step 5: Solve for x
    x = 179,113,329.77/15,465.69
  6. Step 6: Final answer
    x = 11,581.33

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Half scale
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Double scale
Find fourth proportional to 15,466.69, 21,344.14 and 8,393.23
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.