Home / 7,426.90-11,112.66-7,343.86

Finding the Fourth Proportional to 7,426.90, 11,112.66 and 7,343.86

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Solution

The fourth proportional to 7,426.90, 11,112.66 and 7,343.86 is: 10,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,426.90 : 11,112.66 = 7,343.86 : x
  2. Step 2: Convert to fraction form
    7,426.90/11,112.66 = 7,343.86/x
  3. Step 3: Cross multiply
    7,426.90x = 11,112.66 × 7,343.86
  4. Step 4: Simplify right side
    7,426.90x = 81,609,763.70
  5. Step 5: Solve for x
    x = 81,609,763.70/7,426.90
  6. Step 6: Final answer
    x = 10,988.40

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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.