Home / 11,140.67-15,375.52-6,426.47

Finding the Fourth Proportional to 11,140.67, 15,375.52 and 6,426.47

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Solution

The fourth proportional to 11,140.67, 15,375.52 and 6,426.47 is: 8,869.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.67 : 15,375.52 = 6,426.47 : x
  2. Step 2: Convert to fraction form
    11,140.67/15,375.52 = 6,426.47/x
  3. Step 3: Cross multiply
    11,140.67x = 15,375.52 × 6,426.47
  4. Step 4: Simplify right side
    11,140.67x = 98,810,364.49
  5. Step 5: Solve for x
    x = 98,810,364.49/11,140.67
  6. Step 6: Final answer
    x = 8,869.34

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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.