Home / 9,398.10-12,969.54-5,149.08

Finding the Fourth Proportional to 9,398.10, 12,969.54 and 5,149.08

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Solution

The fourth proportional to 9,398.10, 12,969.54 and 5,149.08 is: 7,105.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,398.10 : 12,969.54 = 5,149.08 : x
  2. Step 2: Convert to fraction form
    9,398.10/12,969.54 = 5,149.08/x
  3. Step 3: Cross multiply
    9,398.10x = 12,969.54 × 5,149.08
  4. Step 4: Simplify right side
    9,398.10x = 66,781,199.02
  5. Step 5: Solve for x
    x = 66,781,199.02/9,398.10
  6. Step 6: Final answer
    x = 7,105.82

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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.