Home / 15,428.12-23,143.53-4,334.90

Finding the Fourth Proportional to 15,428.12, 23,143.53 and 4,334.90

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Solution

The fourth proportional to 15,428.12, 23,143.53 and 4,334.90 is: 6,502.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428.12 : 23,143.53 = 4,334.90 : x
  2. Step 2: Convert to fraction form
    15,428.12/23,143.53 = 4,334.90/x
  3. Step 3: Cross multiply
    15,428.12x = 23,143.53 × 4,334.90
  4. Step 4: Simplify right side
    15,428.12x = 100,324,750.80
  5. Step 5: Solve for x
    x = 100,324,750.80/15,428.12
  6. Step 6: Final answer
    x = 6,502.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.