Home / 10,040.10-15,038.55-6,540.90

Finding the Fourth Proportional to 10,040.10, 15,038.55 and 6,540.90

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Solution

The fourth proportional to 10,040.10, 15,038.55 and 6,540.90 is: 9,797.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,040.10 : 15,038.55 = 6,540.90 : x
  2. Step 2: Convert to fraction form
    10,040.10/15,038.55 = 6,540.90/x
  3. Step 3: Cross multiply
    10,040.10x = 15,038.55 × 6,540.90
  4. Step 4: Simplify right side
    10,040.10x = 98,365,651.70
  5. Step 5: Solve for x
    x = 98,365,651.70/10,040.10
  6. Step 6: Final answer
    x = 9,797.28

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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.