Home / 10,281.80-15,422.70-7,001.30

Finding the Fourth Proportional to 10,281.80, 15,422.70 and 7,001.30

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Solution

The fourth proportional to 10,281.80, 15,422.70 and 7,001.30 is: 10,501.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.80 : 15,422.70 = 7,001.30 : x
  2. Step 2: Convert to fraction form
    10,281.80/15,422.70 = 7,001.30/x
  3. Step 3: Cross multiply
    10,281.80x = 15,422.70 × 7,001.30
  4. Step 4: Simplify right side
    10,281.80x = 107,978,949.51
  5. Step 5: Solve for x
    x = 107,978,949.51/10,281.80
  6. Step 6: Final answer
    x = 10,501.95

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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.