Home / 15,552.43-21,445.41-10,507.90

Finding the Fourth Proportional to 15,552.43, 21,445.41 and 10,507.90

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Solution

The fourth proportional to 15,552.43, 21,445.41 and 10,507.90 is: 14,489.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,552.43 : 21,445.41 = 10,507.90 : x
  2. Step 2: Convert to fraction form
    15,552.43/21,445.41 = 10,507.90/x
  3. Step 3: Cross multiply
    15,552.43x = 21,445.41 × 10,507.90
  4. Step 4: Simplify right side
    15,552.43x = 225,346,223.74
  5. Step 5: Solve for x
    x = 225,346,223.74/15,552.43
  6. Step 6: Final answer
    x = 14,489.45

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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.