Home / 15,713.78-21,679.56-10,051.83

Finding the Fourth Proportional to 15,713.78, 21,679.56 and 10,051.83

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Solution

The fourth proportional to 15,713.78, 21,679.56 and 10,051.83 is: 13,868.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,713.78 : 21,679.56 = 10,051.83 : x
  2. Step 2: Convert to fraction form
    15,713.78/21,679.56 = 10,051.83/x
  3. Step 3: Cross multiply
    15,713.78x = 21,679.56 × 10,051.83
  4. Step 4: Simplify right side
    15,713.78x = 217,919,251.59
  5. Step 5: Solve for x
    x = 217,919,251.59/15,713.78
  6. Step 6: Final answer
    x = 13,868.04

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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.