Home / 12,177.84-18,266.26-6,666.13

Finding the Fourth Proportional to 12,177.84, 18,266.26 and 6,666.13

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Solution

The fourth proportional to 12,177.84, 18,266.26 and 6,666.13 is: 9,998.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.84 : 18,266.26 = 6,666.13 : x
  2. Step 2: Convert to fraction form
    12,177.84/18,266.26 = 6,666.13/x
  3. Step 3: Cross multiply
    12,177.84x = 18,266.26 × 6,666.13
  4. Step 4: Simplify right side
    12,177.84x = 121,765,263.77
  5. Step 5: Solve for x
    x = 121,765,263.77/12,177.84
  6. Step 6: Final answer
    x = 9,998.92

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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.