Home / 12,425.94-18,621.33-6,881.82

Finding the Fourth Proportional to 12,425.94, 18,621.33 and 6,881.82

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Solution

The fourth proportional to 12,425.94, 18,621.33 and 6,881.82 is: 10,312.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.94 : 18,621.33 = 6,881.82 : x
  2. Step 2: Convert to fraction form
    12,425.94/18,621.33 = 6,881.82/x
  3. Step 3: Cross multiply
    12,425.94x = 18,621.33 × 6,881.82
  4. Step 4: Simplify right side
    12,425.94x = 128,148,641.22
  5. Step 5: Solve for x
    x = 128,148,641.22/12,425.94
  6. Step 6: Final answer
    x = 10,312.99

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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.