Home / 18,721.13-25,836.77-10,339.25

Finding the Fourth Proportional to 18,721.13, 25,836.77 and 10,339.25

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Solution

The fourth proportional to 18,721.13, 25,836.77 and 10,339.25 is: 14,269.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.13 : 25,836.77 = 10,339.25 : x
  2. Step 2: Convert to fraction form
    18,721.13/25,836.77 = 10,339.25/x
  3. Step 3: Cross multiply
    18,721.13x = 25,836.77 × 10,339.25
  4. Step 4: Simplify right side
    18,721.13x = 267,132,720.89
  5. Step 5: Solve for x
    x = 267,132,720.89/18,721.13
  6. Step 6: Final answer
    x = 14,269.05

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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.