Home / 13,750.65-20,633.31-8,214.84

Finding the Fourth Proportional to 13,750.65, 20,633.31 and 8,214.84

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Solution

The fourth proportional to 13,750.65, 20,633.31 and 8,214.84 is: 12,326.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.65 : 20,633.31 = 8,214.84 : x
  2. Step 2: Convert to fraction form
    13,750.65/20,633.31 = 8,214.84/x
  3. Step 3: Cross multiply
    13,750.65x = 20,633.31 × 8,214.84
  4. Step 4: Simplify right side
    13,750.65x = 169,499,340.32
  5. Step 5: Solve for x
    x = 169,499,340.32/13,750.65
  6. Step 6: Final answer
    x = 12,326.64

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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.