Home / 12,219.04-18,327.35-5,645.13

Finding the Fourth Proportional to 12,219.04, 18,327.35 and 5,645.13

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Solution

The fourth proportional to 12,219.04, 18,327.35 and 5,645.13 is: 8,467.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.04 : 18,327.35 = 5,645.13 : x
  2. Step 2: Convert to fraction form
    12,219.04/18,327.35 = 5,645.13/x
  3. Step 3: Cross multiply
    12,219.04x = 18,327.35 × 5,645.13
  4. Step 4: Simplify right side
    12,219.04x = 103,460,273.31
  5. Step 5: Solve for x
    x = 103,460,273.31/12,219.04
  6. Step 6: Final answer
    x = 8,467.14

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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.