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Finding the Fourth Proportional to 8,888.84, 13,346.96 and 7,520.16

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Solution

The fourth proportional to 8,888.84, 13,346.96 and 7,520.16 is: 11,291.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.84 : 13,346.96 = 7,520.16 : x
  2. Step 2: Convert to fraction form
    8,888.84/13,346.96 = 7,520.16/x
  3. Step 3: Cross multiply
    8,888.84x = 13,346.96 × 7,520.16
  4. Step 4: Simplify right side
    8,888.84x = 100,371,274.71
  5. Step 5: Solve for x
    x = 100,371,274.71/8,888.84
  6. Step 6: Final answer
    x = 11,291.83

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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.