Home / 18,315.18-27,447.66-12,065.76

Finding the Fourth Proportional to 18,315.18, 27,447.66 and 12,065.76

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Solution

The fourth proportional to 18,315.18, 27,447.66 and 12,065.76 is: 18,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.18 : 27,447.66 = 12,065.76 : x
  2. Step 2: Convert to fraction form
    18,315.18/27,447.66 = 12,065.76/x
  3. Step 3: Cross multiply
    18,315.18x = 27,447.66 × 12,065.76
  4. Step 4: Simplify right side
    18,315.18x = 331,176,878.12
  5. Step 5: Solve for x
    x = 331,176,878.12/18,315.18
  6. Step 6: Final answer
    x = 18,082.10

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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.