Home / 12,818.52-19,215.90-6,564.76

Finding the Fourth Proportional to 12,818.52, 19,215.90 and 6,564.76

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Solution

The fourth proportional to 12,818.52, 19,215.90 and 6,564.76 is: 9,841.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,818.52 : 19,215.90 = 6,564.76 : x
  2. Step 2: Convert to fraction form
    12,818.52/19,215.90 = 6,564.76/x
  3. Step 3: Cross multiply
    12,818.52x = 19,215.90 × 6,564.76
  4. Step 4: Simplify right side
    12,818.52x = 126,147,723.64
  5. Step 5: Solve for x
    x = 126,147,723.64/12,818.52
  6. Step 6: Final answer
    x = 9,841.05

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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.