Home / 12,209.90-18,314.88-3,444.81

Finding the Fourth Proportional to 12,209.90, 18,314.88 and 3,444.81

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Solution

The fourth proportional to 12,209.90, 18,314.88 and 3,444.81 is: 5,167.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.90 : 18,314.88 = 3,444.81 : x
  2. Step 2: Convert to fraction form
    12,209.90/18,314.88 = 3,444.81/x
  3. Step 3: Cross multiply
    12,209.90x = 18,314.88 × 3,444.81
  4. Step 4: Simplify right side
    12,209.90x = 63,091,281.77
  5. Step 5: Solve for x
    x = 63,091,281.77/12,209.90
  6. Step 6: Final answer
    x = 5,167.23

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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.