Home / 12,819.65-19,217.59-6,565.88

Finding the Fourth Proportional to 12,819.65, 19,217.59 and 6,565.88

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Solution

The fourth proportional to 12,819.65, 19,217.59 and 6,565.88 is: 9,842.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.65 : 19,217.59 = 6,565.88 : x
  2. Step 2: Convert to fraction form
    12,819.65/19,217.59 = 6,565.88/x
  3. Step 3: Cross multiply
    12,819.65x = 19,217.59 × 6,565.88
  4. Step 4: Simplify right side
    12,819.65x = 126,180,421.46
  5. Step 5: Solve for x
    x = 126,180,421.46/12,819.65
  6. Step 6: Final answer
    x = 9,842.74

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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.