Home / 11,865.80-16,376.49-7,390.95

Finding the Fourth Proportional to 11,865.80, 16,376.49 and 7,390.95

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Solution

The fourth proportional to 11,865.80, 16,376.49 and 7,390.95 is: 10,200.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,865.80 : 16,376.49 = 7,390.95 : x
  2. Step 2: Convert to fraction form
    11,865.80/16,376.49 = 7,390.95/x
  3. Step 3: Cross multiply
    11,865.80x = 16,376.49 × 7,390.95
  4. Step 4: Simplify right side
    11,865.80x = 121,037,818.77
  5. Step 5: Solve for x
    x = 121,037,818.77/11,865.80
  6. Step 6: Final answer
    x = 10,200.56

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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.