Home / 15,781.13-23,675.55-5,251.13

Finding the Fourth Proportional to 15,781.13, 23,675.55 and 5,251.13

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Solution

The fourth proportional to 15,781.13, 23,675.55 and 5,251.13 is: 7,877.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.13 : 23,675.55 = 5,251.13 : x
  2. Step 2: Convert to fraction form
    15,781.13/23,675.55 = 5,251.13/x
  3. Step 3: Cross multiply
    15,781.13x = 23,675.55 × 5,251.13
  4. Step 4: Simplify right side
    15,781.13x = 124,323,378.51
  5. Step 5: Solve for x
    x = 124,323,378.51/15,781.13
  6. Step 6: Final answer
    x = 7,877.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.