Home / 13,329.90-18,392.67-9,344.70

Finding the Fourth Proportional to 13,329.90, 18,392.67 and 9,344.70

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Solution

The fourth proportional to 13,329.90, 18,392.67 and 9,344.70 is: 12,893.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.90 : 18,392.67 = 9,344.70 : x
  2. Step 2: Convert to fraction form
    13,329.90/18,392.67 = 9,344.70/x
  3. Step 3: Cross multiply
    13,329.90x = 18,392.67 × 9,344.70
  4. Step 4: Simplify right side
    13,329.90x = 171,873,983.35
  5. Step 5: Solve for x
    x = 171,873,983.35/13,329.90
  6. Step 6: Final answer
    x = 12,893.87

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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.