Home / 7,114.68-10,719.45-6,422.13

Finding the Fourth Proportional to 7,114.68, 10,719.45 and 6,422.13

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Solution

The fourth proportional to 7,114.68, 10,719.45 and 6,422.13 is: 9,676.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,114.68 : 10,719.45 = 6,422.13 : x
  2. Step 2: Convert to fraction form
    7,114.68/10,719.45 = 6,422.13/x
  3. Step 3: Cross multiply
    7,114.68x = 10,719.45 × 6,422.13
  4. Step 4: Simplify right side
    7,114.68x = 68,841,701.43
  5. Step 5: Solve for x
    x = 68,841,701.43/7,114.68
  6. Step 6: Final answer
    x = 9,676.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.