Home / 19,386.43-29,079.66-6,238.80

Finding the Fourth Proportional to 19,386.43, 29,079.66 and 6,238.80

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Solution

The fourth proportional to 19,386.43, 29,079.66 and 6,238.80 is: 9,358.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386.43 : 29,079.66 = 6,238.80 : x
  2. Step 2: Convert to fraction form
    19,386.43/29,079.66 = 6,238.80/x
  3. Step 3: Cross multiply
    19,386.43x = 29,079.66 × 6,238.80
  4. Step 4: Simplify right side
    19,386.43x = 181,422,151.61
  5. Step 5: Solve for x
    x = 181,422,151.61/19,386.43
  6. Step 6: Final answer
    x = 9,358.20

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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.