Home / 10,120.56-15,177.88-3,545.52

Finding the Fourth Proportional to 10,120.56, 15,177.88 and 3,545.52

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Solution

The fourth proportional to 10,120.56, 15,177.88 and 3,545.52 is: 5,317.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.56 : 15,177.88 = 3,545.52 : x
  2. Step 2: Convert to fraction form
    10,120.56/15,177.88 = 3,545.52/x
  3. Step 3: Cross multiply
    10,120.56x = 15,177.88 × 3,545.52
  4. Step 4: Simplify right side
    10,120.56x = 53,813,477.10
  5. Step 5: Solve for x
    x = 53,813,477.10/10,120.56
  6. Step 6: Final answer
    x = 5,317.24

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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.