Home / 15,865.36-23,767.32-12,209.68

Finding the Fourth Proportional to 15,865.36, 23,767.32 and 12,209.68

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Solution

The fourth proportional to 15,865.36, 23,767.32 and 12,209.68 is: 18,290.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,865.36 : 23,767.32 = 12,209.68 : x
  2. Step 2: Convert to fraction form
    15,865.36/23,767.32 = 12,209.68/x
  3. Step 3: Cross multiply
    15,865.36x = 23,767.32 × 12,209.68
  4. Step 4: Simplify right side
    15,865.36x = 290,191,371.66
  5. Step 5: Solve for x
    x = 290,191,371.66/15,865.36
  6. Step 6: Final answer
    x = 18,290.88

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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.