Home / 15,329.54-21,154.84-8,617.48

Finding the Fourth Proportional to 15,329.54, 21,154.84 and 8,617.48

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Solution

The fourth proportional to 15,329.54, 21,154.84 and 8,617.48 is: 11,892.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,329.54 : 21,154.84 = 8,617.48 : x
  2. Step 2: Convert to fraction form
    15,329.54/21,154.84 = 8,617.48/x
  3. Step 3: Cross multiply
    15,329.54x = 21,154.84 × 8,617.48
  4. Step 4: Simplify right side
    15,329.54x = 182,301,336.17
  5. Step 5: Solve for x
    x = 182,301,336.17/15,329.54
  6. Step 6: Final answer
    x = 11,892.16

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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.