Home / 15,750.42-23,625.11-6,390.20

Finding the Fourth Proportional to 15,750.42, 23,625.11 and 6,390.20

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Solution

The fourth proportional to 15,750.42, 23,625.11 and 6,390.20 is: 9,585.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.42 : 23,625.11 = 6,390.20 : x
  2. Step 2: Convert to fraction form
    15,750.42/23,625.11 = 6,390.20/x
  3. Step 3: Cross multiply
    15,750.42x = 23,625.11 × 6,390.20
  4. Step 4: Simplify right side
    15,750.42x = 150,969,252.96
  5. Step 5: Solve for x
    x = 150,969,252.96/15,750.42
  6. Step 6: Final answer
    x = 9,585.10

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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.