Home / 13,886.08-19,159.83-8,222.61

Finding the Fourth Proportional to 13,886.08, 19,159.83 and 8,222.61

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Solution

The fourth proportional to 13,886.08, 19,159.83 and 8,222.61 is: 11,345.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.08 : 19,159.83 = 8,222.61 : x
  2. Step 2: Convert to fraction form
    13,886.08/19,159.83 = 8,222.61/x
  3. Step 3: Cross multiply
    13,886.08x = 19,159.83 × 8,222.61
  4. Step 4: Simplify right side
    13,886.08x = 157,543,748.80
  5. Step 5: Solve for x
    x = 157,543,748.80/13,886.08
  6. Step 6: Final answer
    x = 11,345.44

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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.