Home / 12,045.60-18,070.32-3,723.66

Finding the Fourth Proportional to 12,045.60, 18,070.32 and 3,723.66

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Solution

The fourth proportional to 12,045.60, 18,070.32 and 3,723.66 is: 5,586.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.60 : 18,070.32 = 3,723.66 : x
  2. Step 2: Convert to fraction form
    12,045.60/18,070.32 = 3,723.66/x
  3. Step 3: Cross multiply
    12,045.60x = 18,070.32 × 3,723.66
  4. Step 4: Simplify right side
    12,045.60x = 67,287,727.77
  5. Step 5: Solve for x
    x = 67,287,727.77/12,045.60
  6. Step 6: Final answer
    x = 5,586.08

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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.