Home / 10,919.60-15,068.36-6,203.84

Finding the Fourth Proportional to 10,919.60, 15,068.36 and 6,203.84

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Solution

The fourth proportional to 10,919.60, 15,068.36 and 6,203.84 is: 8,560.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.60 : 15,068.36 = 6,203.84 : x
  2. Step 2: Convert to fraction form
    10,919.60/15,068.36 = 6,203.84/x
  3. Step 3: Cross multiply
    10,919.60x = 15,068.36 × 6,203.84
  4. Step 4: Simplify right side
    10,919.60x = 93,481,694.50
  5. Step 5: Solve for x
    x = 93,481,694.50/10,919.60
  6. Step 6: Final answer
    x = 8,560.91

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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.