Home / 18,287.18-27,429.39-6,600.40

Finding the Fourth Proportional to 18,287.18, 27,429.39 and 6,600.40

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Solution

The fourth proportional to 18,287.18, 27,429.39 and 6,600.40 is: 9,900.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.18 : 27,429.39 = 6,600.40 : x
  2. Step 2: Convert to fraction form
    18,287.18/27,429.39 = 6,600.40/x
  3. Step 3: Cross multiply
    18,287.18x = 27,429.39 × 6,600.40
  4. Step 4: Simplify right side
    18,287.18x = 181,044,877.18
  5. Step 5: Solve for x
    x = 181,044,877.18/18,287.18
  6. Step 6: Final answer
    x = 9,900.10

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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.