Home / 11,117.88-15,330.06-8,318.52

Finding the Fourth Proportional to 11,117.88, 15,330.06 and 8,318.52

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Solution

The fourth proportional to 11,117.88, 15,330.06 and 8,318.52 is: 11,470.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.88 : 15,330.06 = 8,318.52 : x
  2. Step 2: Convert to fraction form
    11,117.88/15,330.06 = 8,318.52/x
  3. Step 3: Cross multiply
    11,117.88x = 15,330.06 × 8,318.52
  4. Step 4: Simplify right side
    11,117.88x = 127,523,410.71
  5. Step 5: Solve for x
    x = 127,523,410.71/11,117.88
  6. Step 6: Final answer
    x = 11,470.12

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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.