Home / 12,960,387.75-17,885,878.11-7,453,766.34

Finding the Fourth Proportional to 12,960,387.75, 17,885,878.11 and 7,453,766.34

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Solution

The fourth proportional to 12,960,387.75, 17,885,878.11 and 7,453,766.34 is: 10,286,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,387.75 : 17,885,878.11 = 7,453,766.34 : x
  2. Step 2: Convert to fraction form
    12,960,387.75/17,885,878.11 = 7,453,766.34/x
  3. Step 3: Cross multiply
    12,960,387.75x = 17,885,878.11 × 7,453,766.34
  4. Step 4: Simplify right side
    12,960,387.75x = 133,317,156,217,660.81
  5. Step 5: Solve for x
    x = 133,317,156,217,660.81/12,960,387.75
  6. Step 6: Final answer
    x = 10,286,509.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.