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Finding the Fourth Proportional to 8,807.76, 13,185.72 and 5,878.80

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Solution

The fourth proportional to 8,807.76, 13,185.72 and 5,878.80 is: 8,800.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.76 : 13,185.72 = 5,878.80 : x
  2. Step 2: Convert to fraction form
    8,807.76/13,185.72 = 5,878.80/x
  3. Step 3: Cross multiply
    8,807.76x = 13,185.72 × 5,878.80
  4. Step 4: Simplify right side
    8,807.76x = 77,516,210.74
  5. Step 5: Solve for x
    x = 77,516,210.74/8,807.76
  6. Step 6: Final answer
    x = 8,800.90

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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.