Home / 15,337.53-21,164.58-8,621.88

Finding the Fourth Proportional to 15,337.53, 21,164.58 and 8,621.88

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Solution

The fourth proportional to 15,337.53, 21,164.58 and 8,621.88 is: 11,897.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,337.53 : 21,164.58 = 8,621.88 : x
  2. Step 2: Convert to fraction form
    15,337.53/21,164.58 = 8,621.88/x
  3. Step 3: Cross multiply
    15,337.53x = 21,164.58 × 8,621.88
  4. Step 4: Simplify right side
    15,337.53x = 182,478,469.01
  5. Step 5: Solve for x
    x = 182,478,469.01/15,337.53
  6. Step 6: Final answer
    x = 11,897.51

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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.