Home / 10,819.12-14,930.40-6,103.84

Finding the Fourth Proportional to 10,819.12, 14,930.40 and 6,103.84

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Solution

The fourth proportional to 10,819.12, 14,930.40 and 6,103.84 is: 8,423.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,819.12 : 14,930.40 = 6,103.84 : x
  2. Step 2: Convert to fraction form
    10,819.12/14,930.40 = 6,103.84/x
  3. Step 3: Cross multiply
    10,819.12x = 14,930.40 × 6,103.84
  4. Step 4: Simplify right side
    10,819.12x = 91,132,772.74
  5. Step 5: Solve for x
    x = 91,132,772.74/10,819.12
  6. Step 6: Final answer
    x = 8,423.31

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1.5x scale

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.