Home / 13,271.76-19,909.28-4,387.96

Finding the Fourth Proportional to 13,271.76, 19,909.28 and 4,387.96

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Solution

The fourth proportional to 13,271.76, 19,909.28 and 4,387.96 is: 6,582.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.76 : 19,909.28 = 4,387.96 : x
  2. Step 2: Convert to fraction form
    13,271.76/19,909.28 = 4,387.96/x
  3. Step 3: Cross multiply
    13,271.76x = 19,909.28 × 4,387.96
  4. Step 4: Simplify right side
    13,271.76x = 87,361,124.27
  5. Step 5: Solve for x
    x = 87,361,124.27/13,271.76
  6. Step 6: Final answer
    x = 6,582.48

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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.