Home / 15,991.88-22,071.46-9,283.08

Finding the Fourth Proportional to 15,991.88, 22,071.46 and 9,283.08

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Solution

The fourth proportional to 15,991.88, 22,071.46 and 9,283.08 is: 12,812.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.88 : 22,071.46 = 9,283.08 : x
  2. Step 2: Convert to fraction form
    15,991.88/22,071.46 = 9,283.08/x
  3. Step 3: Cross multiply
    15,991.88x = 22,071.46 × 9,283.08
  4. Step 4: Simplify right side
    15,991.88x = 204,891,128.90
  5. Step 5: Solve for x
    x = 204,891,128.90/15,991.88
  6. Step 6: Final answer
    x = 12,812.20

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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.