Home / 13,525.11-18,663.29-9,279.83

Finding the Fourth Proportional to 13,525.11, 18,663.29 and 9,279.83

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Solution

The fourth proportional to 13,525.11, 18,663.29 and 9,279.83 is: 12,805.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.11 : 18,663.29 = 9,279.83 : x
  2. Step 2: Convert to fraction form
    13,525.11/18,663.29 = 9,279.83/x
  3. Step 3: Cross multiply
    13,525.11x = 18,663.29 × 9,279.83
  4. Step 4: Simplify right side
    13,525.11x = 173,192,088.58
  5. Step 5: Solve for x
    x = 173,192,088.58/13,525.11
  6. Step 6: Final answer
    x = 12,805.22

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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.