Home / 12,317.90-18,476.66-8,359.34

Finding the Fourth Proportional to 12,317.90, 18,476.66 and 8,359.34

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Solution

The fourth proportional to 12,317.90, 18,476.66 and 8,359.34 is: 12,538.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,317.90 : 18,476.66 = 8,359.34 : x
  2. Step 2: Convert to fraction form
    12,317.90/18,476.66 = 8,359.34/x
  3. Step 3: Cross multiply
    12,317.90x = 18,476.66 × 8,359.34
  4. Step 4: Simplify right side
    12,317.90x = 154,452,611.52
  5. Step 5: Solve for x
    x = 154,452,611.52/12,317.90
  6. Step 6: Final answer
    x = 12,538.87

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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.