Home / 11,957.90-16,499.40-6,921.81

Finding the Fourth Proportional to 11,957.90, 16,499.40 and 6,921.81

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Solution

The fourth proportional to 11,957.90, 16,499.40 and 6,921.81 is: 9,550.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,957.90 : 16,499.40 = 6,921.81 : x
  2. Step 2: Convert to fraction form
    11,957.90/16,499.40 = 6,921.81/x
  3. Step 3: Cross multiply
    11,957.90x = 16,499.40 × 6,921.81
  4. Step 4: Simplify right side
    11,957.90x = 114,205,711.91
  5. Step 5: Solve for x
    x = 114,205,711.91/11,957.90
  6. Step 6: Final answer
    x = 9,550.65

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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.