Home / 13,363.29-18,456.57-9,107.01

Finding the Fourth Proportional to 13,363.29, 18,456.57 and 9,107.01

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Solution

The fourth proportional to 13,363.29, 18,456.57 and 9,107.01 is: 12,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.29 : 18,456.57 = 9,107.01 : x
  2. Step 2: Convert to fraction form
    13,363.29/18,456.57 = 9,107.01/x
  3. Step 3: Cross multiply
    13,363.29x = 18,456.57 × 9,107.01
  4. Step 4: Simplify right side
    13,363.29x = 168,084,167.56
  5. Step 5: Solve for x
    x = 168,084,167.56/13,363.29
  6. Step 6: Final answer
    x = 12,578.05

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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.