Home / 18,821.48-25,969.46-10,862.02

Finding the Fourth Proportional to 18,821.48, 25,969.46 and 10,862.02

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Solution

The fourth proportional to 18,821.48, 25,969.46 and 10,862.02 is: 14,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.48 : 25,969.46 = 10,862.02 : x
  2. Step 2: Convert to fraction form
    18,821.48/25,969.46 = 10,862.02/x
  3. Step 3: Cross multiply
    18,821.48x = 25,969.46 × 10,862.02
  4. Step 4: Simplify right side
    18,821.48x = 282,080,793.91
  5. Step 5: Solve for x
    x = 282,080,793.91/18,821.48
  6. Step 6: Final answer
    x = 14,987.17

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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.