Home / 15,390.85-23,087.18-4,861.20

Finding the Fourth Proportional to 15,390.85, 23,087.18 and 4,861.20

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Solution

The fourth proportional to 15,390.85, 23,087.18 and 4,861.20 is: 7,292.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,390.85 : 23,087.18 = 4,861.20 : x
  2. Step 2: Convert to fraction form
    15,390.85/23,087.18 = 4,861.20/x
  3. Step 3: Cross multiply
    15,390.85x = 23,087.18 × 4,861.20
  4. Step 4: Simplify right side
    15,390.85x = 112,231,399.42
  5. Step 5: Solve for x
    x = 112,231,399.42/15,390.85
  6. Step 6: Final answer
    x = 7,292.09

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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.