Home / 12,203.48-18,303.60-3,439.10

Finding the Fourth Proportional to 12,203.48, 18,303.60 and 3,439.10

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Solution

The fourth proportional to 12,203.48, 18,303.60 and 3,439.10 is: 5,158.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,203.48 : 18,303.60 = 3,439.10 : x
  2. Step 2: Convert to fraction form
    12,203.48/18,303.60 = 3,439.10/x
  3. Step 3: Cross multiply
    12,203.48x = 18,303.60 × 3,439.10
  4. Step 4: Simplify right side
    12,203.48x = 62,947,910.76
  5. Step 5: Solve for x
    x = 62,947,910.76/12,203.48
  6. Step 6: Final answer
    x = 5,158.19

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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.