Home / 10,134.12-13,985.38-5,657.79

Finding the Fourth Proportional to 10,134.12, 13,985.38 and 5,657.79

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Solution

The fourth proportional to 10,134.12, 13,985.38 and 5,657.79 is: 7,807.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,134.12 : 13,985.38 = 5,657.79 : x
  2. Step 2: Convert to fraction form
    10,134.12/13,985.38 = 5,657.79/x
  3. Step 3: Cross multiply
    10,134.12x = 13,985.38 × 5,657.79
  4. Step 4: Simplify right side
    10,134.12x = 79,126,343.11
  5. Step 5: Solve for x
    x = 79,126,343.11/10,134.12
  6. Step 6: Final answer
    x = 7,807.91

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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.