Home / 18,848.98-28,283.19-7,763.86

Finding the Fourth Proportional to 18,848.98, 28,283.19 and 7,763.86

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Solution

The fourth proportional to 18,848.98, 28,283.19 and 7,763.86 is: 11,649.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,848.98 : 28,283.19 = 7,763.86 : x
  2. Step 2: Convert to fraction form
    18,848.98/28,283.19 = 7,763.86/x
  3. Step 3: Cross multiply
    18,848.98x = 28,283.19 × 7,763.86
  4. Step 4: Simplify right side
    18,848.98x = 219,586,727.51
  5. Step 5: Solve for x
    x = 219,586,727.51/18,848.98
  6. Step 6: Final answer
    x = 11,649.79

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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.