Home / 8,040.32-11,989.18-7,504.10

Finding the Fourth Proportional to 8,040.32, 11,989.18 and 7,504.10

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Solution

The fourth proportional to 8,040.32, 11,989.18 and 7,504.10 is: 11,189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,040.32 : 11,989.18 = 7,504.10 : x
  2. Step 2: Convert to fraction form
    8,040.32/11,989.18 = 7,504.10/x
  3. Step 3: Cross multiply
    8,040.32x = 11,989.18 × 7,504.10
  4. Step 4: Simplify right side
    8,040.32x = 89,967,908.17
  5. Step 5: Solve for x
    x = 89,967,908.17/8,040.32
  6. Step 6: Final answer
    x = 11,189.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.