Home / 15,145.31-22,718.88-4,757.06

Finding the Fourth Proportional to 15,145.31, 22,718.88 and 4,757.06

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Solution

The fourth proportional to 15,145.31, 22,718.88 and 4,757.06 is: 7,135.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.31 : 22,718.88 = 4,757.06 : x
  2. Step 2: Convert to fraction form
    15,145.31/22,718.88 = 4,757.06/x
  3. Step 3: Cross multiply
    15,145.31x = 22,718.88 × 4,757.06
  4. Step 4: Simplify right side
    15,145.31x = 108,075,132.09
  5. Step 5: Solve for x
    x = 108,075,132.09/15,145.31
  6. Step 6: Final answer
    x = 7,135.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.