Home / 15,801.48-21,805.20-9,086.04

Finding the Fourth Proportional to 15,801.48, 21,805.20 and 9,086.04

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Solution

The fourth proportional to 15,801.48, 21,805.20 and 9,086.04 is: 12,538.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,801.48 : 21,805.20 = 9,086.04 : x
  2. Step 2: Convert to fraction form
    15,801.48/21,805.20 = 9,086.04/x
  3. Step 3: Cross multiply
    15,801.48x = 21,805.20 × 9,086.04
  4. Step 4: Simplify right side
    15,801.48x = 198,122,919.41
  5. Step 5: Solve for x
    x = 198,122,919.41/15,801.48
  6. Step 6: Final answer
    x = 12,538.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.