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Finding the Fourth Proportional to 8,460.90, 12,693.54 and 4,953.87

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Solution

The fourth proportional to 8,460.90, 12,693.54 and 4,953.87 is: 7,432.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460.90 : 12,693.54 = 4,953.87 : x
  2. Step 2: Convert to fraction form
    8,460.90/12,693.54 = 4,953.87/x
  3. Step 3: Cross multiply
    8,460.90x = 12,693.54 × 4,953.87
  4. Step 4: Simplify right side
    8,460.90x = 62,882,147.00
  5. Step 5: Solve for x
    x = 62,882,147.00/8,460.90
  6. Step 6: Final answer
    x = 7,432.09

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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.