Home / 15,948.90-22,012.29-12,166.20

Finding the Fourth Proportional to 15,948.90, 22,012.29 and 12,166.20

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Solution

The fourth proportional to 15,948.90, 22,012.29 and 12,166.20 is: 16,791.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,948.90 : 22,012.29 = 12,166.20 : x
  2. Step 2: Convert to fraction form
    15,948.90/22,012.29 = 12,166.20/x
  3. Step 3: Cross multiply
    15,948.90x = 22,012.29 × 12,166.20
  4. Step 4: Simplify right side
    15,948.90x = 267,805,922.60
  5. Step 5: Solve for x
    x = 267,805,922.60/15,948.90
  6. Step 6: Final answer
    x = 16,791.50

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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.