Home / 12,261.34-18,386.61-3,494.26

Finding the Fourth Proportional to 12,261.34, 18,386.61 and 3,494.26

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Solution

The fourth proportional to 12,261.34, 18,386.61 and 3,494.26 is: 5,239.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.34 : 18,386.61 = 3,494.26 : x
  2. Step 2: Convert to fraction form
    12,261.34/18,386.61 = 3,494.26/x
  3. Step 3: Cross multiply
    12,261.34x = 18,386.61 × 3,494.26
  4. Step 4: Simplify right side
    12,261.34x = 64,247,595.86
  5. Step 5: Solve for x
    x = 64,247,595.86/12,261.34
  6. Step 6: Final answer
    x = 5,239.85

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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.