Home / 7,724.28-10,661.42-5,075.28

Finding the Fourth Proportional to 7,724.28, 10,661.42 and 5,075.28

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Solution

The fourth proportional to 7,724.28, 10,661.42 and 5,075.28 is: 7,005.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.28 : 10,661.42 = 5,075.28 : x
  2. Step 2: Convert to fraction form
    7,724.28/10,661.42 = 5,075.28/x
  3. Step 3: Cross multiply
    7,724.28x = 10,661.42 × 5,075.28
  4. Step 4: Simplify right side
    7,724.28x = 54,109,691.70
  5. Step 5: Solve for x
    x = 54,109,691.70/7,724.28
  6. Step 6: Final answer
    x = 7,005.14

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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.