Home / 7,111.96-9,817.19-5,348.65

Finding the Fourth Proportional to 7,111.96, 9,817.19 and 5,348.65

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Solution

The fourth proportional to 7,111.96, 9,817.19 and 5,348.65 is: 7,383.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.96 : 9,817.19 = 5,348.65 : x
  2. Step 2: Convert to fraction form
    7,111.96/9,817.19 = 5,348.65/x
  3. Step 3: Cross multiply
    7,111.96x = 9,817.19 × 5,348.65
  4. Step 4: Simplify right side
    7,111.96x = 52,508,686.55
  5. Step 5: Solve for x
    x = 52,508,686.55/7,111.96
  6. Step 6: Final answer
    x = 7,383.16

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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.