Home / 10,001.20-15,017.86-6,499.72

Finding the Fourth Proportional to 10,001.20, 15,017.86 and 6,499.72

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Solution

The fourth proportional to 10,001.20, 15,017.86 and 6,499.72 is: 9,760.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.20 : 15,017.86 = 6,499.72 : x
  2. Step 2: Convert to fraction form
    10,001.20/15,017.86 = 6,499.72/x
  3. Step 3: Cross multiply
    10,001.20x = 15,017.86 × 6,499.72
  4. Step 4: Simplify right side
    10,001.20x = 97,611,833.10
  5. Step 5: Solve for x
    x = 97,611,833.10/10,001.20
  6. Step 6: Final answer
    x = 9,760.02

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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.