Home / 10,711.66-16,039.80-7,390.15

Finding the Fourth Proportional to 10,711.66, 16,039.80 and 7,390.15

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Solution

The fourth proportional to 10,711.66, 16,039.80 and 7,390.15 is: 11,066.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,711.66 : 16,039.80 = 7,390.15 : x
  2. Step 2: Convert to fraction form
    10,711.66/16,039.80 = 7,390.15/x
  3. Step 3: Cross multiply
    10,711.66x = 16,039.80 × 7,390.15
  4. Step 4: Simplify right side
    10,711.66x = 118,536,447.77
  5. Step 5: Solve for x
    x = 118,536,447.77/10,711.66
  6. Step 6: Final answer
    x = 11,066.12

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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.