Home / 12,549.36-18,676.18-12,082.80

Finding the Fourth Proportional to 12,549.36, 18,676.18 and 12,082.80

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Solution

The fourth proportional to 12,549.36, 18,676.18 and 12,082.80 is: 17,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.36 : 18,676.18 = 12,082.80 : x
  2. Step 2: Convert to fraction form
    12,549.36/18,676.18 = 12,082.80/x
  3. Step 3: Cross multiply
    12,549.36x = 18,676.18 × 12,082.80
  4. Step 4: Simplify right side
    12,549.36x = 225,660,547.70
  5. Step 5: Solve for x
    x = 225,660,547.70/12,549.36
  6. Step 6: Final answer
    x = 17,981.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.