Home / 12,511.74-18,776.15-6,672.45

Finding the Fourth Proportional to 12,511.74, 18,776.15 and 6,672.45

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Solution

The fourth proportional to 12,511.74, 18,776.15 and 6,672.45 is: 10,013.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.74 : 18,776.15 = 6,672.45 : x
  2. Step 2: Convert to fraction form
    12,511.74/18,776.15 = 6,672.45/x
  3. Step 3: Cross multiply
    12,511.74x = 18,776.15 × 6,672.45
  4. Step 4: Simplify right side
    12,511.74x = 125,282,922.07
  5. Step 5: Solve for x
    x = 125,282,922.07/12,511.74
  6. Step 6: Final answer
    x = 10,013.23

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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.