Home / 15,507.82-23,247.87-5,640.15

Finding the Fourth Proportional to 15,507.82, 23,247.87 and 5,640.15

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Solution

The fourth proportional to 15,507.82, 23,247.87 and 5,640.15 is: 8,455.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507.82 : 23,247.87 = 5,640.15 : x
  2. Step 2: Convert to fraction form
    15,507.82/23,247.87 = 5,640.15/x
  3. Step 3: Cross multiply
    15,507.82x = 23,247.87 × 5,640.15
  4. Step 4: Simplify right side
    15,507.82x = 131,121,357.74
  5. Step 5: Solve for x
    x = 131,121,357.74/15,507.82
  6. Step 6: Final answer
    x = 8,455.18

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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.