Home / 25,974.80-38,962.20-8,446.40

Finding the Fourth Proportional to 25,974.80, 38,962.20 and 8,446.40

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Solution

The fourth proportional to 25,974.80, 38,962.20 and 8,446.40 is: 12,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,974.80 : 38,962.20 = 8,446.40 : x
  2. Step 2: Convert to fraction form
    25,974.80/38,962.20 = 8,446.40/x
  3. Step 3: Cross multiply
    25,974.80x = 38,962.20 × 8,446.40
  4. Step 4: Simplify right side
    25,974.80x = 329,090,326.08
  5. Step 5: Solve for x
    x = 329,090,326.08/25,974.80
  6. Step 6: Final answer
    x = 12,669.60

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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.