Home / 9,553.48-13,154.40-8,489.41

Finding the Fourth Proportional to 9,553.48, 13,154.40 and 8,489.41

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Solution

The fourth proportional to 9,553.48, 13,154.40 and 8,489.41 is: 11,689.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,553.48 : 13,154.40 = 8,489.41 : x
  2. Step 2: Convert to fraction form
    9,553.48/13,154.40 = 8,489.41/x
  3. Step 3: Cross multiply
    9,553.48x = 13,154.40 × 8,489.41
  4. Step 4: Simplify right side
    9,553.48x = 111,673,062.02
  5. Step 5: Solve for x
    x = 111,673,062.02/9,553.48
  6. Step 6: Final answer
    x = 11,689.26

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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.