Home / 15,337.68-21,165.18-8,623.56

Finding the Fourth Proportional to 15,337.68, 21,165.18 and 8,623.56

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Solution

The fourth proportional to 15,337.68, 21,165.18 and 8,623.56 is: 11,900.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,337.68 : 21,165.18 = 8,623.56 : x
  2. Step 2: Convert to fraction form
    15,337.68/21,165.18 = 8,623.56/x
  3. Step 3: Cross multiply
    15,337.68x = 21,165.18 × 8,623.56
  4. Step 4: Simplify right side
    15,337.68x = 182,519,199.64
  5. Step 5: Solve for x
    x = 182,519,199.64/15,337.68
  6. Step 6: Final answer
    x = 11,900.05

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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.