Home / 9,612.20-14,418.30-7,020.20

Finding the Fourth Proportional to 9,612.20, 14,418.30 and 7,020.20

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Solution

The fourth proportional to 9,612.20, 14,418.30 and 7,020.20 is: 10,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,612.20 : 14,418.30 = 7,020.20 : x
  2. Step 2: Convert to fraction form
    9,612.20/14,418.30 = 7,020.20/x
  3. Step 3: Cross multiply
    9,612.20x = 14,418.30 × 7,020.20
  4. Step 4: Simplify right side
    9,612.20x = 101,219,349.66
  5. Step 5: Solve for x
    x = 101,219,349.66/9,612.20
  6. Step 6: Final answer
    x = 10,530.30

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Half scale
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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.