Home / 15,290.09-22,937.43-5,428.55

Finding the Fourth Proportional to 15,290.09, 22,937.43 and 5,428.55

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Solution

The fourth proportional to 15,290.09, 22,937.43 and 5,428.55 is: 8,143.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290.09 : 22,937.43 = 5,428.55 : x
  2. Step 2: Convert to fraction form
    15,290.09/22,937.43 = 5,428.55/x
  3. Step 3: Cross multiply
    15,290.09x = 22,937.43 × 5,428.55
  4. Step 4: Simplify right side
    15,290.09x = 124,516,843.80
  5. Step 5: Solve for x
    x = 124,516,843.80/15,290.09
  6. Step 6: Final answer
    x = 8,143.63

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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.