Home / 9,218.41-12,721.02-5,185.14

Finding the Fourth Proportional to 9,218.41, 12,721.02 and 5,185.14

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Solution

The fourth proportional to 9,218.41, 12,721.02 and 5,185.14 is: 7,155.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,218.41 : 12,721.02 = 5,185.14 : x
  2. Step 2: Convert to fraction form
    9,218.41/12,721.02 = 5,185.14/x
  3. Step 3: Cross multiply
    9,218.41x = 12,721.02 × 5,185.14
  4. Step 4: Simplify right side
    9,218.41x = 65,960,282.02
  5. Step 5: Solve for x
    x = 65,960,282.02/9,218.41
  6. Step 6: Final answer
    x = 7,155.28

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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.