Home / 11,395.12-15,725.67-6,614.70

Finding the Fourth Proportional to 11,395.12, 15,725.67 and 6,614.70

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Solution

The fourth proportional to 11,395.12, 15,725.67 and 6,614.70 is: 9,128.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,395.12 : 15,725.67 = 6,614.70 : x
  2. Step 2: Convert to fraction form
    11,395.12/15,725.67 = 6,614.70/x
  3. Step 3: Cross multiply
    11,395.12x = 15,725.67 × 6,614.70
  4. Step 4: Simplify right side
    11,395.12x = 104,020,589.35
  5. Step 5: Solve for x
    x = 104,020,589.35/11,395.12
  6. Step 6: Final answer
    x = 9,128.52

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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.