Home / 25,718.27-38,574.64-8,186.72

Finding the Fourth Proportional to 25,718.27, 38,574.64 and 8,186.72

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Solution

The fourth proportional to 25,718.27, 38,574.64 and 8,186.72 is: 12,279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,718.27 : 38,574.64 = 8,186.72 : x
  2. Step 2: Convert to fraction form
    25,718.27/38,574.64 = 8,186.72/x
  3. Step 3: Cross multiply
    25,718.27x = 38,574.64 × 8,186.72
  4. Step 4: Simplify right side
    25,718.27x = 315,799,852.75
  5. Step 5: Solve for x
    x = 315,799,852.75/25,718.27
  6. Step 6: Final answer
    x = 12,279.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.