Home / 19,116.12-28,670.88-8,725.44

Finding the Fourth Proportional to 19,116.12, 28,670.88 and 8,725.44

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Solution

The fourth proportional to 19,116.12, 28,670.88 and 8,725.44 is: 13,086.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116.12 : 28,670.88 = 8,725.44 : x
  2. Step 2: Convert to fraction form
    19,116.12/28,670.88 = 8,725.44/x
  3. Step 3: Cross multiply
    19,116.12x = 28,670.88 × 8,725.44
  4. Step 4: Simplify right side
    19,116.12x = 250,166,043.19
  5. Step 5: Solve for x
    x = 250,166,043.19/19,116.12
  6. Step 6: Final answer
    x = 13,086.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.