Home / 11,280.74-15,555.92-9,363.47

Finding the Fourth Proportional to 11,280.74, 15,555.92 and 9,363.47

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Solution

The fourth proportional to 11,280.74, 15,555.92 and 9,363.47 is: 12,912.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.74 : 15,555.92 = 9,363.47 : x
  2. Step 2: Convert to fraction form
    11,280.74/15,555.92 = 9,363.47/x
  3. Step 3: Cross multiply
    11,280.74x = 15,555.92 × 9,363.47
  4. Step 4: Simplify right side
    11,280.74x = 145,657,265.65
  5. Step 5: Solve for x
    x = 145,657,265.65/11,280.74
  6. Step 6: Final answer
    x = 12,912.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.