Home / 12,548.93-18,823.39-5,618.57

Finding the Fourth Proportional to 12,548.93, 18,823.39 and 5,618.57

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Solution

The fourth proportional to 12,548.93, 18,823.39 and 5,618.57 is: 8,427.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.93 : 18,823.39 = 5,618.57 : x
  2. Step 2: Convert to fraction form
    12,548.93/18,823.39 = 5,618.57/x
  3. Step 3: Cross multiply
    12,548.93x = 18,823.39 × 5,618.57
  4. Step 4: Simplify right side
    12,548.93x = 105,760,426.19
  5. Step 5: Solve for x
    x = 105,760,426.19/12,548.93
  6. Step 6: Final answer
    x = 8,427.85

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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.