Home / 10,002.56-15,003.90-4,159.15

Finding the Fourth Proportional to 10,002.56, 15,003.90 and 4,159.15

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Solution

The fourth proportional to 10,002.56, 15,003.90 and 4,159.15 is: 6,238.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,002.56 : 15,003.90 = 4,159.15 : x
  2. Step 2: Convert to fraction form
    10,002.56/15,003.90 = 4,159.15/x
  3. Step 3: Cross multiply
    10,002.56x = 15,003.90 × 4,159.15
  4. Step 4: Simplify right side
    10,002.56x = 62,403,433.18
  5. Step 5: Solve for x
    x = 62,403,433.18/10,002.56
  6. Step 6: Final answer
    x = 6,238.75

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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.