Home / 15,561.93-21,458.45-10,517.41

Finding the Fourth Proportional to 15,561.93, 21,458.45 and 10,517.41

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Solution

The fourth proportional to 15,561.93, 21,458.45 and 10,517.41 is: 14,502.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,561.93 : 21,458.45 = 10,517.41 : x
  2. Step 2: Convert to fraction form
    15,561.93/21,458.45 = 10,517.41/x
  3. Step 3: Cross multiply
    15,561.93x = 21,458.45 × 10,517.41
  4. Step 4: Simplify right side
    15,561.93x = 225,687,316.61
  5. Step 5: Solve for x
    x = 225,687,316.61/15,561.93
  6. Step 6: Final answer
    x = 14,502.53

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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.