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Finding the Fourth Proportional to 8,880.40, 12,253.80 and 4,901.68

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Solution

The fourth proportional to 8,880.40, 12,253.80 and 4,901.68 is: 6,763.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.40 : 12,253.80 = 4,901.68 : x
  2. Step 2: Convert to fraction form
    8,880.40/12,253.80 = 4,901.68/x
  3. Step 3: Cross multiply
    8,880.40x = 12,253.80 × 4,901.68
  4. Step 4: Simplify right side
    8,880.40x = 60,064,206.38
  5. Step 5: Solve for x
    x = 60,064,206.38/8,880.40
  6. Step 6: Final answer
    x = 6,763.68

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Half 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.