Home / 10,920.93-15,072.68-8,567.17

Finding the Fourth Proportional to 10,920.93, 15,072.68 and 8,567.17

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Solution

The fourth proportional to 10,920.93, 15,072.68 and 8,567.17 is: 11,824.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920.93 : 15,072.68 = 8,567.17 : x
  2. Step 2: Convert to fraction form
    10,920.93/15,072.68 = 8,567.17/x
  3. Step 3: Cross multiply
    10,920.93x = 15,072.68 × 8,567.17
  4. Step 4: Simplify right side
    10,920.93x = 129,130,195.65
  5. Step 5: Solve for x
    x = 129,130,195.65/10,920.93
  6. Step 6: Final answer
    x = 11,824.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.