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Finding the Fourth Proportional to 10,888.47, 15,008.63 and 7,345.53

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Solution

The fourth proportional to 10,888.47, 15,008.63 and 7,345.53 is: 10,125.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888.47 : 15,008.63 = 7,345.53 : x
  2. Step 2: Convert to fraction form
    10,888.47/15,008.63 = 7,345.53/x
  3. Step 3: Cross multiply
    10,888.47x = 15,008.63 × 7,345.53
  4. Step 4: Simplify right side
    10,888.47x = 110,246,305.20
  5. Step 5: Solve for x
    x = 110,246,305.20/10,888.47
  6. Step 6: Final answer
    x = 10,125.05

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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.