Home / 9,180.12-13,765.63-3,914.31

Finding the Fourth Proportional to 9,180.12, 13,765.63 and 3,914.31

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Solution

The fourth proportional to 9,180.12, 13,765.63 and 3,914.31 is: 5,869.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.12 : 13,765.63 = 3,914.31 : x
  2. Step 2: Convert to fraction form
    9,180.12/13,765.63 = 3,914.31/x
  3. Step 3: Cross multiply
    9,180.12x = 13,765.63 × 3,914.31
  4. Step 4: Simplify right side
    9,180.12x = 53,882,943.17
  5. Step 5: Solve for x
    x = 53,882,943.17/9,180.12
  6. Step 6: Final answer
    x = 5,869.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.