Home / 13,296.90-18,350.31-7,329.18

Finding the Fourth Proportional to 13,296.90, 18,350.31 and 7,329.18

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Solution

The fourth proportional to 13,296.90, 18,350.31 and 7,329.18 is: 10,114.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,296.90 : 18,350.31 = 7,329.18 : x
  2. Step 2: Convert to fraction form
    13,296.90/18,350.31 = 7,329.18/x
  3. Step 3: Cross multiply
    13,296.90x = 18,350.31 × 7,329.18
  4. Step 4: Simplify right side
    13,296.90x = 134,492,725.05
  5. Step 5: Solve for x
    x = 134,492,725.05/13,296.90
  6. Step 6: Final answer
    x = 10,114.59

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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.