Home / 12,208.20-18,323.10-10,458.60

Finding the Fourth Proportional to 12,208.20, 18,323.10 and 10,458.60

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Solution

The fourth proportional to 12,208.20, 18,323.10 and 10,458.60 is: 15,697.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.20 : 18,323.10 = 10,458.60 : x
  2. Step 2: Convert to fraction form
    12,208.20/18,323.10 = 10,458.60/x
  3. Step 3: Cross multiply
    12,208.20x = 18,323.10 × 10,458.60
  4. Step 4: Simplify right side
    12,208.20x = 191,633,973.66
  5. Step 5: Solve for x
    x = 191,633,973.66/12,208.20
  6. Step 6: Final answer
    x = 15,697.15

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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.