Home / 12,925.80-19,356.30-8,519.40

Finding the Fourth Proportional to 12,925.80, 19,356.30 and 8,519.40

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Solution

The fourth proportional to 12,925.80, 19,356.30 and 8,519.40 is: 12,757.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,925.80 : 19,356.30 = 8,519.40 : x
  2. Step 2: Convert to fraction form
    12,925.80/19,356.30 = 8,519.40/x
  3. Step 3: Cross multiply
    12,925.80x = 19,356.30 × 8,519.40
  4. Step 4: Simplify right side
    12,925.80x = 164,904,062.22
  5. Step 5: Solve for x
    x = 164,904,062.22/12,925.80
  6. Step 6: Final answer
    x = 12,757.75

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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.