Home / 10,355.50-14,288.68-6,107.90

Finding the Fourth Proportional to 10,355.50, 14,288.68 and 6,107.90

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Solution

The fourth proportional to 10,355.50, 14,288.68 and 6,107.90 is: 8,427.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.50 : 14,288.68 = 6,107.90 : x
  2. Step 2: Convert to fraction form
    10,355.50/14,288.68 = 6,107.90/x
  3. Step 3: Cross multiply
    10,355.50x = 14,288.68 × 6,107.90
  4. Step 4: Simplify right side
    10,355.50x = 87,273,828.57
  5. Step 5: Solve for x
    x = 87,273,828.57/10,355.50
  6. Step 6: Final answer
    x = 8,427.78

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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.