Home / 15,401.13-21,253.55-8,327.55

Finding the Fourth Proportional to 15,401.13, 21,253.55 and 8,327.55

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Solution

The fourth proportional to 15,401.13, 21,253.55 and 8,327.55 is: 11,492.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401.13 : 21,253.55 = 8,327.55 : x
  2. Step 2: Convert to fraction form
    15,401.13/21,253.55 = 8,327.55/x
  3. Step 3: Cross multiply
    15,401.13x = 21,253.55 × 8,327.55
  4. Step 4: Simplify right side
    15,401.13x = 176,990,000.30
  5. Step 5: Solve for x
    x = 176,990,000.30/15,401.13
  6. Step 6: Final answer
    x = 11,492.01

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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.