Home / 15,888.26-21,925.82-8,814.68

Finding the Fourth Proportional to 15,888.26, 21,925.82 and 8,814.68

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Solution

The fourth proportional to 15,888.26, 21,925.82 and 8,814.68 is: 12,164.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,888.26 : 21,925.82 = 8,814.68 : x
  2. Step 2: Convert to fraction form
    15,888.26/21,925.82 = 8,814.68/x
  3. Step 3: Cross multiply
    15,888.26x = 21,925.82 × 8,814.68
  4. Step 4: Simplify right side
    15,888.26x = 193,269,087.04
  5. Step 5: Solve for x
    x = 193,269,087.04/15,888.26
  6. Step 6: Final answer
    x = 12,164.27

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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.