Home / 18,925.04-28,390.98-7,825.70

Finding the Fourth Proportional to 18,925.04, 28,390.98 and 7,825.70

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Solution

The fourth proportional to 18,925.04, 28,390.98 and 7,825.70 is: 11,739.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,925.04 : 28,390.98 = 7,825.70 : x
  2. Step 2: Convert to fraction form
    18,925.04/28,390.98 = 7,825.70/x
  3. Step 3: Cross multiply
    18,925.04x = 28,390.98 × 7,825.70
  4. Step 4: Simplify right side
    18,925.04x = 222,179,292.19
  5. Step 5: Solve for x
    x = 222,179,292.19/18,925.04
  6. Step 6: Final answer
    x = 11,739.96

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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.