Home / 8,913.20-12,294.50-5,373

Finding the Fourth Proportional to 8,913.20, 12,294.50 and 5,373

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Solution

The fourth proportional to 8,913.20, 12,294.50 and 5,373 is: 7,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.20 : 12,294.50 = 5,373 : x
  2. Step 2: Convert to fraction form
    8,913.20/12,294.50 = 5,373/x
  3. Step 3: Cross multiply
    8,913.20x = 12,294.50 × 5,373
  4. Step 4: Simplify right side
    8,913.20x = 66,058,321.64
  5. Step 5: Solve for x
    x = 66,058,321.64/8,913.20
  6. Step 6: Final answer
    x = 7,411.30

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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.