Home / 12,561.93-18,843.30-6,318.53

Finding the Fourth Proportional to 12,561.93, 18,843.30 and 6,318.53

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Solution

The fourth proportional to 12,561.93, 18,843.30 and 6,318.53 is: 9,477.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.93 : 18,843.30 = 6,318.53 : x
  2. Step 2: Convert to fraction form
    12,561.93/18,843.30 = 6,318.53/x
  3. Step 3: Cross multiply
    12,561.93x = 18,843.30 × 6,318.53
  4. Step 4: Simplify right side
    12,561.93x = 119,061,862.13
  5. Step 5: Solve for x
    x = 119,061,862.13/12,561.93
  6. Step 6: Final answer
    x = 9,477.99

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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.