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Finding the Fourth Proportional to 9,248.78, 13,889.87 and 8,507.07

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Solution

The fourth proportional to 9,248.78, 13,889.87 and 8,507.07 is: 12,775.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,248.78 : 13,889.87 = 8,507.07 : x
  2. Step 2: Convert to fraction form
    9,248.78/13,889.87 = 8,507.07/x
  3. Step 3: Cross multiply
    9,248.78x = 13,889.87 × 8,507.07
  4. Step 4: Simplify right side
    9,248.78x = 118,162,096.38
  5. Step 5: Solve for x
    x = 118,162,096.38/9,248.78
  6. Step 6: Final answer
    x = 12,775.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.