Home / 12,177.40-18,266.10-9,698.80

Finding the Fourth Proportional to 12,177.40, 18,266.10 and 9,698.80

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Solution

The fourth proportional to 12,177.40, 18,266.10 and 9,698.80 is: 14,548.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.40 : 18,266.10 = 9,698.80 : x
  2. Step 2: Convert to fraction form
    12,177.40/18,266.10 = 9,698.80/x
  3. Step 3: Cross multiply
    12,177.40x = 18,266.10 × 9,698.80
  4. Step 4: Simplify right side
    12,177.40x = 177,159,250.68
  5. Step 5: Solve for x
    x = 177,159,250.68/12,177.40
  6. Step 6: Final answer
    x = 14,548.20

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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.