Home / 13,089.75-19,630.67-4,326.99

Finding the Fourth Proportional to 13,089.75, 19,630.67 and 4,326.99

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Solution

The fourth proportional to 13,089.75, 19,630.67 and 4,326.99 is: 6,489.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,089.75 : 19,630.67 = 4,326.99 : x
  2. Step 2: Convert to fraction form
    13,089.75/19,630.67 = 4,326.99/x
  3. Step 3: Cross multiply
    13,089.75x = 19,630.67 × 4,326.99
  4. Step 4: Simplify right side
    13,089.75x = 84,941,691.15
  5. Step 5: Solve for x
    x = 84,941,691.15/13,089.75
  6. Step 6: Final answer
    x = 6,489.18

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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.