Home / 15,871.52-23,798.96-5,480.80

Finding the Fourth Proportional to 15,871.52, 23,798.96 and 5,480.80

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Solution

The fourth proportional to 15,871.52, 23,798.96 and 5,480.80 is: 8,218.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871.52 : 23,798.96 = 5,480.80 : x
  2. Step 2: Convert to fraction form
    15,871.52/23,798.96 = 5,480.80/x
  3. Step 3: Cross multiply
    15,871.52x = 23,798.96 × 5,480.80
  4. Step 4: Simplify right side
    15,871.52x = 130,437,339.97
  5. Step 5: Solve for x
    x = 130,437,339.97/15,871.52
  6. Step 6: Final answer
    x = 8,218.33

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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.