Home / 12,257.40-18,386.10-9,797.03

Finding the Fourth Proportional to 12,257.40, 18,386.10 and 9,797.03

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Solution

The fourth proportional to 12,257.40, 18,386.10 and 9,797.03 is: 14,695.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.40 : 18,386.10 = 9,797.03 : x
  2. Step 2: Convert to fraction form
    12,257.40/18,386.10 = 9,797.03/x
  3. Step 3: Cross multiply
    12,257.40x = 18,386.10 × 9,797.03
  4. Step 4: Simplify right side
    12,257.40x = 180,129,173.28
  5. Step 5: Solve for x
    x = 180,129,173.28/12,257.40
  6. Step 6: Final answer
    x = 14,695.55

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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.