Home / 11,617.87-16,032.72-6,312.70

Finding the Fourth Proportional to 11,617.87, 16,032.72 and 6,312.70

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Solution

The fourth proportional to 11,617.87, 16,032.72 and 6,312.70 is: 8,711.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,617.87 : 16,032.72 = 6,312.70 : x
  2. Step 2: Convert to fraction form
    11,617.87/16,032.72 = 6,312.70/x
  3. Step 3: Cross multiply
    11,617.87x = 16,032.72 × 6,312.70
  4. Step 4: Simplify right side
    11,617.87x = 101,209,751.54
  5. Step 5: Solve for x
    x = 101,209,751.54/11,617.87
  6. Step 6: Final answer
    x = 8,711.56

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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.