Home / 7,321.02-10,081.35-7,167.66

Finding the Fourth Proportional to 7,321.02, 10,081.35 and 7,167.66

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Solution

The fourth proportional to 7,321.02, 10,081.35 and 7,167.66 is: 9,870.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.02 : 10,081.35 = 7,167.66 : x
  2. Step 2: Convert to fraction form
    7,321.02/10,081.35 = 7,167.66/x
  3. Step 3: Cross multiply
    7,321.02x = 10,081.35 × 7,167.66
  4. Step 4: Simplify right side
    7,321.02x = 72,259,689.14
  5. Step 5: Solve for x
    x = 72,259,689.14/7,321.02
  6. Step 6: Final answer
    x = 9,870.17

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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.