Home / 16,291.88-22,480.90-9,122.20

Finding the Fourth Proportional to 16,291.88, 22,480.90 and 9,122.20

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Solution

The fourth proportional to 16,291.88, 22,480.90 and 9,122.20 is: 12,587.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,291.88 : 22,480.90 = 9,122.20 : x
  2. Step 2: Convert to fraction form
    16,291.88/22,480.90 = 9,122.20/x
  3. Step 3: Cross multiply
    16,291.88x = 22,480.90 × 9,122.20
  4. Step 4: Simplify right side
    16,291.88x = 205,075,265.98
  5. Step 5: Solve for x
    x = 205,075,265.98/16,291.88
  6. Step 6: Final answer
    x = 12,587.58

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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.