Home / 13,151.90-19,710.24-6,478.22

Finding the Fourth Proportional to 13,151.90, 19,710.24 and 6,478.22

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Solution

The fourth proportional to 13,151.90, 19,710.24 and 6,478.22 is: 9,708.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.90 : 19,710.24 = 6,478.22 : x
  2. Step 2: Convert to fraction form
    13,151.90/19,710.24 = 6,478.22/x
  3. Step 3: Cross multiply
    13,151.90x = 19,710.24 × 6,478.22
  4. Step 4: Simplify right side
    13,151.90x = 127,687,270.97
  5. Step 5: Solve for x
    x = 127,687,270.97/13,151.90
  6. Step 6: Final answer
    x = 9,708.66

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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.