Home / 15,679.08-21,633.42-8,873.22

Finding the Fourth Proportional to 15,679.08, 21,633.42 and 8,873.22

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Solution

The fourth proportional to 15,679.08, 21,633.42 and 8,873.22 is: 12,242.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,679.08 : 21,633.42 = 8,873.22 : x
  2. Step 2: Convert to fraction form
    15,679.08/21,633.42 = 8,873.22/x
  3. Step 3: Cross multiply
    15,679.08x = 21,633.42 × 8,873.22
  4. Step 4: Simplify right side
    15,679.08x = 191,958,095.01
  5. Step 5: Solve for x
    x = 191,958,095.01/15,679.08
  6. Step 6: Final answer
    x = 12,242.94

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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.