Home / 12,339.50-17,028.45-6,674.21

Finding the Fourth Proportional to 12,339.50, 17,028.45 and 6,674.21

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Solution

The fourth proportional to 12,339.50, 17,028.45 and 6,674.21 is: 9,210.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.50 : 17,028.45 = 6,674.21 : x
  2. Step 2: Convert to fraction form
    12,339.50/17,028.45 = 6,674.21/x
  3. Step 3: Cross multiply
    12,339.50x = 17,028.45 × 6,674.21
  4. Step 4: Simplify right side
    12,339.50x = 113,651,332.76
  5. Step 5: Solve for x
    x = 113,651,332.76/12,339.50
  6. Step 6: Final answer
    x = 9,210.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.