Home / 8,667.70-13,001.31-2,428.13

Finding the Fourth Proportional to 8,667.70, 13,001.31 and 2,428.13

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Solution

The fourth proportional to 8,667.70, 13,001.31 and 2,428.13 is: 3,642.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.70 : 13,001.31 = 2,428.13 : x
  2. Step 2: Convert to fraction form
    8,667.70/13,001.31 = 2,428.13/x
  3. Step 3: Cross multiply
    8,667.70x = 13,001.31 × 2,428.13
  4. Step 4: Simplify right side
    8,667.70x = 31,568,870.85
  5. Step 5: Solve for x
    x = 31,568,870.85/8,667.70
  6. Step 6: Final answer
    x = 3,642.13

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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.