Home / 12,539.24-18,810.48-4,215.68

Finding the Fourth Proportional to 12,539.24, 18,810.48 and 4,215.68

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Solution

The fourth proportional to 12,539.24, 18,810.48 and 4,215.68 is: 6,324.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.24 : 18,810.48 = 4,215.68 : x
  2. Step 2: Convert to fraction form
    12,539.24/18,810.48 = 4,215.68/x
  3. Step 3: Cross multiply
    12,539.24x = 18,810.48 × 4,215.68
  4. Step 4: Simplify right side
    12,539.24x = 79,298,964.33
  5. Step 5: Solve for x
    x = 79,298,964.33/12,539.24
  6. Step 6: Final answer
    x = 6,324.06

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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.