Home / 7,724.29-10,661.43-5,075.29

Finding the Fourth Proportional to 7,724.29, 10,661.43 and 5,075.29

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Solution

The fourth proportional to 7,724.29, 10,661.43 and 5,075.29 is: 7,005.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.29 : 10,661.43 = 5,075.29 : x
  2. Step 2: Convert to fraction form
    7,724.29/10,661.43 = 5,075.29/x
  3. Step 3: Cross multiply
    7,724.29x = 10,661.43 × 5,075.29
  4. Step 4: Simplify right side
    7,724.29x = 54,109,795.76
  5. Step 5: Solve for x
    x = 54,109,795.76/7,724.29
  6. Step 6: Final answer
    x = 7,005.15

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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.