Home / 11,387.92-15,715.35-6,283.32

Finding the Fourth Proportional to 11,387.92, 15,715.35 and 6,283.32

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Solution

The fourth proportional to 11,387.92, 15,715.35 and 6,283.32 is: 8,670.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.92 : 15,715.35 = 6,283.32 : x
  2. Step 2: Convert to fraction form
    11,387.92/15,715.35 = 6,283.32/x
  3. Step 3: Cross multiply
    11,387.92x = 15,715.35 × 6,283.32
  4. Step 4: Simplify right side
    11,387.92x = 98,744,490.47
  5. Step 5: Solve for x
    x = 98,744,490.47/11,387.92
  6. Step 6: Final answer
    x = 8,670.99

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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.