Home / 9,315.29-13,974.89-2,740.92

Finding the Fourth Proportional to 9,315.29, 13,974.89 and 2,740.92

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Solution

The fourth proportional to 9,315.29, 13,974.89 and 2,740.92 is: 4,111.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.29 : 13,974.89 = 2,740.92 : x
  2. Step 2: Convert to fraction form
    9,315.29/13,974.89 = 2,740.92/x
  3. Step 3: Cross multiply
    9,315.29x = 13,974.89 × 2,740.92
  4. Step 4: Simplify right side
    9,315.29x = 38,304,041.79
  5. Step 5: Solve for x
    x = 38,304,041.79/9,315.29
  6. Step 6: Final answer
    x = 4,111.96

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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.