Home / 14,261.60-21,392.40-9,012.80

Finding the Fourth Proportional to 14,261.60, 21,392.40 and 9,012.80

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Solution

The fourth proportional to 14,261.60, 21,392.40 and 9,012.80 is: 13,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,261.60 : 21,392.40 = 9,012.80 : x
  2. Step 2: Convert to fraction form
    14,261.60/21,392.40 = 9,012.80/x
  3. Step 3: Cross multiply
    14,261.60x = 21,392.40 × 9,012.80
  4. Step 4: Simplify right side
    14,261.60x = 192,805,422.72
  5. Step 5: Solve for x
    x = 192,805,422.72/14,261.60
  6. Step 6: Final answer
    x = 13,519.20

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Similar ratio
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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.