Home / 18,732.11-28,088.86-6,885.40

Finding the Fourth Proportional to 18,732.11, 28,088.86 and 6,885.40

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Solution

The fourth proportional to 18,732.11, 28,088.86 and 6,885.40 is: 10,324.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732.11 : 28,088.86 = 6,885.40 : x
  2. Step 2: Convert to fraction form
    18,732.11/28,088.86 = 6,885.40/x
  3. Step 3: Cross multiply
    18,732.11x = 28,088.86 × 6,885.40
  4. Step 4: Simplify right side
    18,732.11x = 193,403,036.64
  5. Step 5: Solve for x
    x = 193,403,036.64/18,732.11
  6. Step 6: Final answer
    x = 10,324.68

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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.