Home / 18,767.09-28,164.51-15,113.42

Finding the Fourth Proportional to 18,767.09, 28,164.51 and 15,113.42

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Solution

The fourth proportional to 18,767.09, 28,164.51 and 15,113.42 is: 22,681.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.09 : 28,164.51 = 15,113.42 : x
  2. Step 2: Convert to fraction form
    18,767.09/28,164.51 = 15,113.42/x
  3. Step 3: Cross multiply
    18,767.09x = 28,164.51 × 15,113.42
  4. Step 4: Simplify right side
    18,767.09x = 425,662,033.52
  5. Step 5: Solve for x
    x = 425,662,033.52/18,767.09
  6. Step 6: Final answer
    x = 22,681.30

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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.