Home / 10,380.75-14,326.21-5,905.95

Finding the Fourth Proportional to 10,380.75, 14,326.21 and 5,905.95

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Solution

The fourth proportional to 10,380.75, 14,326.21 and 5,905.95 is: 8,150.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.75 : 14,326.21 = 5,905.95 : x
  2. Step 2: Convert to fraction form
    10,380.75/14,326.21 = 5,905.95/x
  3. Step 3: Cross multiply
    10,380.75x = 14,326.21 × 5,905.95
  4. Step 4: Simplify right side
    10,380.75x = 84,609,894.71
  5. Step 5: Solve for x
    x = 84,609,894.71/10,380.75
  6. Step 6: Final answer
    x = 8,150.65

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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.