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Finding the Fourth Proportional to 11,089.66, 15,310.08 and 10,459.08

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Solution

The fourth proportional to 11,089.66, 15,310.08 and 10,459.08 is: 14,439.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,089.66 : 15,310.08 = 10,459.08 : x
  2. Step 2: Convert to fraction form
    11,089.66/15,310.08 = 10,459.08/x
  3. Step 3: Cross multiply
    11,089.66x = 15,310.08 × 10,459.08
  4. Step 4: Simplify right side
    11,089.66x = 160,129,351.53
  5. Step 5: Solve for x
    x = 160,129,351.53/11,089.66
  6. Step 6: Final answer
    x = 14,439.52

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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.