Home / 15,820.38-21,834.77-10,713.60

Finding the Fourth Proportional to 15,820.38, 21,834.77 and 10,713.60

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Solution

The fourth proportional to 15,820.38, 21,834.77 and 10,713.60 is: 14,786.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,820.38 : 21,834.77 = 10,713.60 : x
  2. Step 2: Convert to fraction form
    15,820.38/21,834.77 = 10,713.60/x
  3. Step 3: Cross multiply
    15,820.38x = 21,834.77 × 10,713.60
  4. Step 4: Simplify right side
    15,820.38x = 233,928,938.30
  5. Step 5: Solve for x
    x = 233,928,938.30/15,820.38
  6. Step 6: Final answer
    x = 14,786.56

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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.