Home / 18,718.24-25,830.75-10,220.02

Finding the Fourth Proportional to 18,718.24, 25,830.75 and 10,220.02

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Solution

The fourth proportional to 18,718.24, 25,830.75 and 10,220.02 is: 14,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.24 : 25,830.75 = 10,220.02 : x
  2. Step 2: Convert to fraction form
    18,718.24/25,830.75 = 10,220.02/x
  3. Step 3: Cross multiply
    18,718.24x = 25,830.75 × 10,220.02
  4. Step 4: Simplify right side
    18,718.24x = 263,990,781.62
  5. Step 5: Solve for x
    x = 263,990,781.62/18,718.24
  6. Step 6: Final answer
    x = 14,103.40

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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.