Home / 12,358.20-18,539.32-4,035.80

Finding the Fourth Proportional to 12,358.20, 18,539.32 and 4,035.80

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Solution

The fourth proportional to 12,358.20, 18,539.32 and 4,035.80 is: 6,054.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.20 : 18,539.32 = 4,035.80 : x
  2. Step 2: Convert to fraction form
    12,358.20/18,539.32 = 4,035.80/x
  3. Step 3: Cross multiply
    12,358.20x = 18,539.32 × 4,035.80
  4. Step 4: Simplify right side
    12,358.20x = 74,820,987.66
  5. Step 5: Solve for x
    x = 74,820,987.66/12,358.20
  6. Step 6: Final answer
    x = 6,054.36

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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.