Home / 10,170.08-15,260.89-5,490.03

Finding the Fourth Proportional to 10,170.08, 15,260.89 and 5,490.03

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Solution

The fourth proportional to 10,170.08, 15,260.89 and 5,490.03 is: 8,238.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,170.08 : 15,260.89 = 5,490.03 : x
  2. Step 2: Convert to fraction form
    10,170.08/15,260.89 = 5,490.03/x
  3. Step 3: Cross multiply
    10,170.08x = 15,260.89 × 5,490.03
  4. Step 4: Simplify right side
    10,170.08x = 83,782,743.93
  5. Step 5: Solve for x
    x = 83,782,743.93/10,170.08
  6. Step 6: Final answer
    x = 8,238.16

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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.