Home / 7,151.98-9,867.40-4,167.13

Finding the Fourth Proportional to 7,151.98, 9,867.40 and 4,167.13

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Solution

The fourth proportional to 7,151.98, 9,867.40 and 4,167.13 is: 5,749.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.98 : 9,867.40 = 4,167.13 : x
  2. Step 2: Convert to fraction form
    7,151.98/9,867.40 = 4,167.13/x
  3. Step 3: Cross multiply
    7,151.98x = 9,867.40 × 4,167.13
  4. Step 4: Simplify right side
    7,151.98x = 41,118,738.56
  5. Step 5: Solve for x
    x = 41,118,738.56/7,151.98
  6. Step 6: Final answer
    x = 5,749.28

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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.