Home / 12,546.61-18,827.21-5,621.11

Finding the Fourth Proportional to 12,546.61, 18,827.21 and 5,621.11

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Solution

The fourth proportional to 12,546.61, 18,827.21 and 5,621.11 is: 8,434.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,546.61 : 18,827.21 = 5,621.11 : x
  2. Step 2: Convert to fraction form
    12,546.61/18,827.21 = 5,621.11/x
  3. Step 3: Cross multiply
    12,546.61x = 18,827.21 × 5,621.11
  4. Step 4: Simplify right side
    12,546.61x = 105,829,790.30
  5. Step 5: Solve for x
    x = 105,829,790.30/12,546.61
  6. Step 6: Final answer
    x = 8,434.93

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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.