Home / 18,927.04-28,393.98-7,827.70

Finding the Fourth Proportional to 18,927.04, 28,393.98 and 7,827.70

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Solution

The fourth proportional to 18,927.04, 28,393.98 and 7,827.70 is: 11,742.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927.04 : 28,393.98 = 7,827.70 : x
  2. Step 2: Convert to fraction form
    18,927.04/28,393.98 = 7,827.70/x
  3. Step 3: Cross multiply
    18,927.04x = 28,393.98 × 7,827.70
  4. Step 4: Simplify right side
    18,927.04x = 222,259,557.25
  5. Step 5: Solve for x
    x = 222,259,557.25/18,927.04
  6. Step 6: Final answer
    x = 11,742.96

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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.