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Finding the Fourth Proportional to 8,948.02, 12,348.12 and 5,171.00

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Solution

The fourth proportional to 8,948.02, 12,348.12 and 5,171.00 is: 7,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.02 : 12,348.12 = 5,171.00 : x
  2. Step 2: Convert to fraction form
    8,948.02/12,348.12 = 5,171.00/x
  3. Step 3: Cross multiply
    8,948.02x = 12,348.12 × 5,171.00
  4. Step 4: Simplify right side
    8,948.02x = 63,852,158.45
  5. Step 5: Solve for x
    x = 63,852,158.45/8,948.02
  6. Step 6: Final answer
    x = 7,135.90

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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.