Home / 15,018.80-22,530.90-5,155.52

Finding the Fourth Proportional to 15,018.80, 22,530.90 and 5,155.52

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Solution

The fourth proportional to 15,018.80, 22,530.90 and 5,155.52 is: 7,734.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,018.80 : 22,530.90 = 5,155.52 : x
  2. Step 2: Convert to fraction form
    15,018.80/22,530.90 = 5,155.52/x
  3. Step 3: Cross multiply
    15,018.80x = 22,530.90 × 5,155.52
  4. Step 4: Simplify right side
    15,018.80x = 116,158,505.57
  5. Step 5: Solve for x
    x = 116,158,505.57/15,018.80
  6. Step 6: Final answer
    x = 7,734.21

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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.