Home / 13,590.32-18,754.82-8,212.01

Finding the Fourth Proportional to 13,590.32, 18,754.82 and 8,212.01

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Solution

The fourth proportional to 13,590.32, 18,754.82 and 8,212.01 is: 11,332.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.32 : 18,754.82 = 8,212.01 : x
  2. Step 2: Convert to fraction form
    13,590.32/18,754.82 = 8,212.01/x
  3. Step 3: Cross multiply
    13,590.32x = 18,754.82 × 8,212.01
  4. Step 4: Simplify right side
    13,590.32x = 154,014,634.55
  5. Step 5: Solve for x
    x = 154,014,634.55/13,590.32
  6. Step 6: Final answer
    x = 11,332.68

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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.