Home / 13,487.22-18,604.74-8,442.68

Finding the Fourth Proportional to 13,487.22, 18,604.74 and 8,442.68

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Solution

The fourth proportional to 13,487.22, 18,604.74 and 8,442.68 is: 11,646.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487.22 : 18,604.74 = 8,442.68 : x
  2. Step 2: Convert to fraction form
    13,487.22/18,604.74 = 8,442.68/x
  3. Step 3: Cross multiply
    13,487.22x = 18,604.74 × 8,442.68
  4. Step 4: Simplify right side
    13,487.22x = 157,073,866.30
  5. Step 5: Solve for x
    x = 157,073,866.30/13,487.22
  6. Step 6: Final answer
    x = 11,646.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.