Home / 12,315.49-18,473.51-4,418.53

Finding the Fourth Proportional to 12,315.49, 18,473.51 and 4,418.53

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Solution

The fourth proportional to 12,315.49, 18,473.51 and 4,418.53 is: 6,627.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,315.49 : 18,473.51 = 4,418.53 : x
  2. Step 2: Convert to fraction form
    12,315.49/18,473.51 = 4,418.53/x
  3. Step 3: Cross multiply
    12,315.49x = 18,473.51 × 4,418.53
  4. Step 4: Simplify right side
    12,315.49x = 81,625,723.00
  5. Step 5: Solve for x
    x = 81,625,723.00/12,315.49
  6. Step 6: Final answer
    x = 6,627.89

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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.