Home / 11,866.79-16,378.14-8,036.70

Finding the Fourth Proportional to 11,866.79, 16,378.14 and 8,036.70

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Solution

The fourth proportional to 11,866.79, 16,378.14 and 8,036.70 is: 11,091.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,866.79 : 16,378.14 = 8,036.70 : x
  2. Step 2: Convert to fraction form
    11,866.79/16,378.14 = 8,036.70/x
  3. Step 3: Cross multiply
    11,866.79x = 16,378.14 × 8,036.70
  4. Step 4: Simplify right side
    11,866.79x = 131,626,197.74
  5. Step 5: Solve for x
    x = 131,626,197.74/11,866.79
  6. Step 6: Final answer
    x = 11,091.98

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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.