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Finding the Fourth Proportional to 8,812.54, 12,157.11 and 5,275.07

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Solution

The fourth proportional to 8,812.54, 12,157.11 and 5,275.07 is: 7,277.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.54 : 12,157.11 = 5,275.07 : x
  2. Step 2: Convert to fraction form
    8,812.54/12,157.11 = 5,275.07/x
  3. Step 3: Cross multiply
    8,812.54x = 12,157.11 × 5,275.07
  4. Step 4: Simplify right side
    8,812.54x = 64,129,545.46
  5. Step 5: Solve for x
    x = 64,129,545.46/8,812.54
  6. Step 6: Final answer
    x = 7,277.08

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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.