Home / 9,280.24-13,920.30-7,442.90

Finding the Fourth Proportional to 9,280.24, 13,920.30 and 7,442.90

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Solution

The fourth proportional to 9,280.24, 13,920.30 and 7,442.90 is: 11,164.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,280.24 : 13,920.30 = 7,442.90 : x
  2. Step 2: Convert to fraction form
    9,280.24/13,920.30 = 7,442.90/x
  3. Step 3: Cross multiply
    9,280.24x = 13,920.30 × 7,442.90
  4. Step 4: Simplify right side
    9,280.24x = 103,607,400.87
  5. Step 5: Solve for x
    x = 103,607,400.87/9,280.24
  6. Step 6: Final answer
    x = 11,164.30

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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.