Home / 7,131.60-10,697.40-5,491.35

Finding the Fourth Proportional to 7,131.60, 10,697.40 and 5,491.35

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Solution

The fourth proportional to 7,131.60, 10,697.40 and 5,491.35 is: 8,237.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.60 : 10,697.40 = 5,491.35 : x
  2. Step 2: Convert to fraction form
    7,131.60/10,697.40 = 5,491.35/x
  3. Step 3: Cross multiply
    7,131.60x = 10,697.40 × 5,491.35
  4. Step 4: Simplify right side
    7,131.60x = 58,743,167.49
  5. Step 5: Solve for x
    x = 58,743,167.49/7,131.60
  6. Step 6: Final answer
    x = 8,237.03

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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.