Home / 18,839.07-28,263.80-8,317.47

Finding the Fourth Proportional to 18,839.07, 28,263.80 and 8,317.47

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Solution

The fourth proportional to 18,839.07, 28,263.80 and 8,317.47 is: 12,478.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.07 : 28,263.80 = 8,317.47 : x
  2. Step 2: Convert to fraction form
    18,839.07/28,263.80 = 8,317.47/x
  3. Step 3: Cross multiply
    18,839.07x = 28,263.80 × 8,317.47
  4. Step 4: Simplify right side
    18,839.07x = 235,083,435.37
  5. Step 5: Solve for x
    x = 235,083,435.37/18,839.07
  6. Step 6: Final answer
    x = 12,478.51

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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.