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Finding the Fourth Proportional to 8,873.61, 12,246.18 and 5,147.61

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Solution

The fourth proportional to 8,873.61, 12,246.18 and 5,147.61 is: 7,104.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,873.61 : 12,246.18 = 5,147.61 : x
  2. Step 2: Convert to fraction form
    8,873.61/12,246.18 = 5,147.61/x
  3. Step 3: Cross multiply
    8,873.61x = 12,246.18 × 5,147.61
  4. Step 4: Simplify right side
    8,873.61x = 63,038,558.63
  5. Step 5: Solve for x
    x = 63,038,558.63/8,873.61
  6. Step 6: Final answer
    x = 7,104.05

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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.