Home / 18,721.72-25,836.02-10,223.91

Finding the Fourth Proportional to 18,721.72, 25,836.02 and 10,223.91

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Solution

The fourth proportional to 18,721.72, 25,836.02 and 10,223.91 is: 14,109.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.72 : 25,836.02 = 10,223.91 : x
  2. Step 2: Convert to fraction form
    18,721.72/25,836.02 = 10,223.91/x
  3. Step 3: Cross multiply
    18,721.72x = 25,836.02 × 10,223.91
  4. Step 4: Simplify right side
    18,721.72x = 264,145,143.24
  5. Step 5: Solve for x
    x = 264,145,143.24/18,721.72
  6. Step 6: Final answer
    x = 14,109.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.