Home / 10,187.66-14,059.20-5,711.18

Finding the Fourth Proportional to 10,187.66, 14,059.20 and 5,711.18

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Solution

The fourth proportional to 10,187.66, 14,059.20 and 5,711.18 is: 7,881.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,187.66 : 14,059.20 = 5,711.18 : x
  2. Step 2: Convert to fraction form
    10,187.66/14,059.20 = 5,711.18/x
  3. Step 3: Cross multiply
    10,187.66x = 14,059.20 × 5,711.18
  4. Step 4: Simplify right side
    10,187.66x = 80,294,621.86
  5. Step 5: Solve for x
    x = 80,294,621.86/10,187.66
  6. Step 6: Final answer
    x = 7,881.56

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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.