Home / 14,077.80-21,116.70-7,500.60

Finding the Fourth Proportional to 14,077.80, 21,116.70 and 7,500.60

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Solution

The fourth proportional to 14,077.80, 21,116.70 and 7,500.60 is: 11,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,077.80 : 21,116.70 = 7,500.60 : x
  2. Step 2: Convert to fraction form
    14,077.80/21,116.70 = 7,500.60/x
  3. Step 3: Cross multiply
    14,077.80x = 21,116.70 × 7,500.60
  4. Step 4: Simplify right side
    14,077.80x = 158,387,920.02
  5. Step 5: Solve for x
    x = 158,387,920.02/14,077.80
  6. Step 6: Final answer
    x = 11,250.90

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Double scale
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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.