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Finding the Fourth Proportional to 10,964.16, 15,130.80 and 6,248.88

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Solution

The fourth proportional to 10,964.16, 15,130.80 and 6,248.88 is: 8,623.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,964.16 : 15,130.80 = 6,248.88 : x
  2. Step 2: Convert to fraction form
    10,964.16/15,130.80 = 6,248.88/x
  3. Step 3: Cross multiply
    10,964.16x = 15,130.80 × 6,248.88
  4. Step 4: Simplify right side
    10,964.16x = 94,550,553.50
  5. Step 5: Solve for x
    x = 94,550,553.50/10,964.16
  6. Step 6: Final answer
    x = 8,623.60

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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.