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Finding the Fourth Proportional to 8,880, 12,253.68 and 4,900.57

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Solution

The fourth proportional to 8,880, 12,253.68 and 4,900.57 is: 6,762.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880 : 12,253.68 = 4,900.57 : x
  2. Step 2: Convert to fraction form
    8,880/12,253.68 = 4,900.57/x
  3. Step 3: Cross multiply
    8,880x = 12,253.68 × 4,900.57
  4. Step 4: Simplify right side
    8,880x = 60,050,016.60
  5. Step 5: Solve for x
    x = 60,050,016.60/8,880
  6. Step 6: Final answer
    x = 6,762.39

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Double scale
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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.