Home / 12,525.34-17,281.05-7,219.43

Finding the Fourth Proportional to 12,525.34, 17,281.05 and 7,219.43

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Solution

The fourth proportional to 12,525.34, 17,281.05 and 7,219.43 is: 9,960.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,525.34 : 17,281.05 = 7,219.43 : x
  2. Step 2: Convert to fraction form
    12,525.34/17,281.05 = 7,219.43/x
  3. Step 3: Cross multiply
    12,525.34x = 17,281.05 × 7,219.43
  4. Step 4: Simplify right side
    12,525.34x = 124,759,330.80
  5. Step 5: Solve for x
    x = 124,759,330.80/12,525.34
  6. Step 6: Final answer
    x = 9,960.56

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.