Home / 18,721.24-25,836.35-10,224.15

Finding the Fourth Proportional to 18,721.24, 25,836.35 and 10,224.15

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Solution

The fourth proportional to 18,721.24, 25,836.35 and 10,224.15 is: 14,109.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.24 : 25,836.35 = 10,224.15 : x
  2. Step 2: Convert to fraction form
    18,721.24/25,836.35 = 10,224.15/x
  3. Step 3: Cross multiply
    18,721.24x = 25,836.35 × 10,224.15
  4. Step 4: Simplify right side
    18,721.24x = 264,154,588.67
  5. Step 5: Solve for x
    x = 264,154,588.67/18,721.24
  6. Step 6: Final answer
    x = 14,109.89

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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.