Home / 15,145.09-22,718.40-5,785.92

Finding the Fourth Proportional to 15,145.09, 22,718.40 and 5,785.92

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Solution

The fourth proportional to 15,145.09, 22,718.40 and 5,785.92 is: 8,679.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.09 : 22,718.40 = 5,785.92 : x
  2. Step 2: Convert to fraction form
    15,145.09/22,718.40 = 5,785.92/x
  3. Step 3: Cross multiply
    15,145.09x = 22,718.40 × 5,785.92
  4. Step 4: Simplify right side
    15,145.09x = 131,446,844.93
  5. Step 5: Solve for x
    x = 131,446,844.93/15,145.09
  6. Step 6: Final answer
    x = 8,679.17

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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.