Home / 12,561.60-18,842.40-3,328.32

Finding the Fourth Proportional to 12,561.60, 18,842.40 and 3,328.32

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Solution

The fourth proportional to 12,561.60, 18,842.40 and 3,328.32 is: 4,992.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.60 : 18,842.40 = 3,328.32 : x
  2. Step 2: Convert to fraction form
    12,561.60/18,842.40 = 3,328.32/x
  3. Step 3: Cross multiply
    12,561.60x = 18,842.40 × 3,328.32
  4. Step 4: Simplify right side
    12,561.60x = 62,713,536.77
  5. Step 5: Solve for x
    x = 62,713,536.77/12,561.60
  6. Step 6: Final answer
    x = 4,992.48

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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.