Home / 10,819.40-14,929.68-6,103.40

Finding the Fourth Proportional to 10,819.40, 14,929.68 and 6,103.40

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Solution

The fourth proportional to 10,819.40, 14,929.68 and 6,103.40 is: 8,422.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,819.40 : 14,929.68 = 6,103.40 : x
  2. Step 2: Convert to fraction form
    10,819.40/14,929.68 = 6,103.40/x
  3. Step 3: Cross multiply
    10,819.40x = 14,929.68 × 6,103.40
  4. Step 4: Simplify right side
    10,819.40x = 91,121,808.91
  5. Step 5: Solve for x
    x = 91,121,808.91/10,819.40
  6. Step 6: Final answer
    x = 8,422.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.