Home / 10,127.26-15,185.90-6,128.65

Finding the Fourth Proportional to 10,127.26, 15,185.90 and 6,128.65

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Solution

The fourth proportional to 10,127.26, 15,185.90 and 6,128.65 is: 9,189.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.26 : 15,185.90 = 6,128.65 : x
  2. Step 2: Convert to fraction form
    10,127.26/15,185.90 = 6,128.65/x
  3. Step 3: Cross multiply
    10,127.26x = 15,185.90 × 6,128.65
  4. Step 4: Simplify right side
    10,127.26x = 93,069,035.39
  5. Step 5: Solve for x
    x = 93,069,035.39/10,127.26
  6. Step 6: Final answer
    x = 9,189.95

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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.