Home / 10,299.20-14,217.12-6,107.84

Finding the Fourth Proportional to 10,299.20, 14,217.12 and 6,107.84

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Solution

The fourth proportional to 10,299.20, 14,217.12 and 6,107.84 is: 8,431.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,299.20 : 14,217.12 = 6,107.84 : x
  2. Step 2: Convert to fraction form
    10,299.20/14,217.12 = 6,107.84/x
  3. Step 3: Cross multiply
    10,299.20x = 14,217.12 × 6,107.84
  4. Step 4: Simplify right side
    10,299.20x = 86,835,894.22
  5. Step 5: Solve for x
    x = 86,835,894.22/10,299.20
  6. Step 6: Final answer
    x = 8,431.32

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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.