Home / 15,337.52-21,165.72-8,623.40

Finding the Fourth Proportional to 15,337.52, 21,165.72 and 8,623.40

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Solution

The fourth proportional to 15,337.52, 21,165.72 and 8,623.40 is: 11,900.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,337.52 : 21,165.72 = 8,623.40 : x
  2. Step 2: Convert to fraction form
    15,337.52/21,165.72 = 8,623.40/x
  3. Step 3: Cross multiply
    15,337.52x = 21,165.72 × 8,623.40
  4. Step 4: Simplify right side
    15,337.52x = 182,520,469.85
  5. Step 5: Solve for x
    x = 182,520,469.85/15,337.52
  6. Step 6: Final answer
    x = 11,900.26

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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.