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Finding the Fourth Proportional to 9,349.02, 12,875.40 and 9,144.90

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Solution

The fourth proportional to 9,349.02, 12,875.40 and 9,144.90 is: 12,594.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,349.02 : 12,875.40 = 9,144.90 : x
  2. Step 2: Convert to fraction form
    9,349.02/12,875.40 = 9,144.90/x
  3. Step 3: Cross multiply
    9,349.02x = 12,875.40 × 9,144.90
  4. Step 4: Simplify right side
    9,349.02x = 117,744,245.46
  5. Step 5: Solve for x
    x = 117,744,245.46/9,349.02
  6. Step 6: Final answer
    x = 12,594.29

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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.