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Finding the Fourth Proportional to 11,437.61, 15,770.09 and 8,886.11

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Solution

The fourth proportional to 11,437.61, 15,770.09 and 8,886.11 is: 12,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,437.61 : 15,770.09 = 8,886.11 : x
  2. Step 2: Convert to fraction form
    11,437.61/15,770.09 = 8,886.11/x
  3. Step 3: Cross multiply
    11,437.61x = 15,770.09 × 8,886.11
  4. Step 4: Simplify right side
    11,437.61x = 140,134,697.81
  5. Step 5: Solve for x
    x = 140,134,697.81/11,437.61
  6. Step 6: Final answer
    x = 12,252.10

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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.