Home / 15,552.42-21,445.39-10,507.89

Finding the Fourth Proportional to 15,552.42, 21,445.39 and 10,507.89

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Solution

The fourth proportional to 15,552.42, 21,445.39 and 10,507.89 is: 14,489.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,552.42 : 21,445.39 = 10,507.89 : x
  2. Step 2: Convert to fraction form
    15,552.42/21,445.39 = 10,507.89/x
  3. Step 3: Cross multiply
    15,552.42x = 21,445.39 × 10,507.89
  4. Step 4: Simplify right side
    15,552.42x = 225,345,799.13
  5. Step 5: Solve for x
    x = 225,345,799.13/15,552.42
  6. Step 6: Final answer
    x = 14,489.44

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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.