Home / 15,665.48-21,619.72-8,593.28

Finding the Fourth Proportional to 15,665.48, 21,619.72 and 8,593.28

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Solution

The fourth proportional to 15,665.48, 21,619.72 and 8,593.28 is: 11,859.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,665.48 : 21,619.72 = 8,593.28 : x
  2. Step 2: Convert to fraction form
    15,665.48/21,619.72 = 8,593.28/x
  3. Step 3: Cross multiply
    15,665.48x = 21,619.72 × 8,593.28
  4. Step 4: Simplify right side
    15,665.48x = 185,784,307.48
  5. Step 5: Solve for x
    x = 185,784,307.48/15,665.48
  6. Step 6: Final answer
    x = 11,859.47

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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.