Home / 13,329.03-18,394.29-8,621.51

Finding the Fourth Proportional to 13,329.03, 18,394.29 and 8,621.51

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Solution

The fourth proportional to 13,329.03, 18,394.29 and 8,621.51 is: 11,897.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.03 : 18,394.29 = 8,621.51 : x
  2. Step 2: Convert to fraction form
    13,329.03/18,394.29 = 8,621.51/x
  3. Step 3: Cross multiply
    13,329.03x = 18,394.29 × 8,621.51
  4. Step 4: Simplify right side
    13,329.03x = 158,586,555.18
  5. Step 5: Solve for x
    x = 158,586,555.18/13,329.03
  6. Step 6: Final answer
    x = 11,897.83

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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.