Home / 8,989.30-12,377.00-7,642.26

Finding the Fourth Proportional to 8,989.30, 12,377.00 and 7,642.26

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Solution

The fourth proportional to 8,989.30, 12,377.00 and 7,642.26 is: 10,522.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.30 : 12,377.00 = 7,642.26 : x
  2. Step 2: Convert to fraction form
    8,989.30/12,377.00 = 7,642.26/x
  3. Step 3: Cross multiply
    8,989.30x = 12,377.00 × 7,642.26
  4. Step 4: Simplify right side
    8,989.30x = 94,588,171.03
  5. Step 5: Solve for x
    x = 94,588,171.03/8,989.30
  6. Step 6: Final answer
    x = 10,522.31

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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.