Home / 12,220.79-18,316.98-5,633.10

Finding the Fourth Proportional to 12,220.79, 18,316.98 and 5,633.10

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Solution

The fourth proportional to 12,220.79, 18,316.98 and 5,633.10 is: 8,443.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.79 : 18,316.98 = 5,633.10 : x
  2. Step 2: Convert to fraction form
    12,220.79/18,316.98 = 5,633.10/x
  3. Step 3: Cross multiply
    12,220.79x = 18,316.98 × 5,633.10
  4. Step 4: Simplify right side
    12,220.79x = 103,181,380.04
  5. Step 5: Solve for x
    x = 103,181,380.04/12,220.79
  6. Step 6: Final answer
    x = 8,443.11

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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.