Home / 12,927.89-19,394.87-4,162.47

Finding the Fourth Proportional to 12,927.89, 19,394.87 and 4,162.47

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Solution

The fourth proportional to 12,927.89, 19,394.87 and 4,162.47 is: 6,244.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927.89 : 19,394.87 = 4,162.47 : x
  2. Step 2: Convert to fraction form
    12,927.89/19,394.87 = 4,162.47/x
  3. Step 3: Cross multiply
    12,927.89x = 19,394.87 × 4,162.47
  4. Step 4: Simplify right side
    12,927.89x = 80,730,543.72
  5. Step 5: Solve for x
    x = 80,730,543.72/12,927.89
  6. Step 6: Final answer
    x = 6,244.68

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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.