Home / 15,888.44-21,925.32-8,814.80

Finding the Fourth Proportional to 15,888.44, 21,925.32 and 8,814.80

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Solution

The fourth proportional to 15,888.44, 21,925.32 and 8,814.80 is: 12,164.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,888.44 : 21,925.32 = 8,814.80 : x
  2. Step 2: Convert to fraction form
    15,888.44/21,925.32 = 8,814.80/x
  3. Step 3: Cross multiply
    15,888.44x = 21,925.32 × 8,814.80
  4. Step 4: Simplify right side
    15,888.44x = 193,267,310.74
  5. Step 5: Solve for x
    x = 193,267,310.74/15,888.44
  6. Step 6: Final answer
    x = 12,164.02

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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.