Home / 18,718.30-25,825.04-12,348.04

Finding the Fourth Proportional to 18,718.30, 25,825.04 and 12,348.04

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Solution

The fourth proportional to 18,718.30, 25,825.04 and 12,348.04 is: 17,036.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.30 : 25,825.04 = 12,348.04 : x
  2. Step 2: Convert to fraction form
    18,718.30/25,825.04 = 12,348.04/x
  3. Step 3: Cross multiply
    18,718.30x = 25,825.04 × 12,348.04
  4. Step 4: Simplify right side
    18,718.30x = 318,888,626.92
  5. Step 5: Solve for x
    x = 318,888,626.92/18,718.30
  6. Step 6: Final answer
    x = 17,036.20

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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.