Home / 12,848.60-19,287.30-9,939.80

Finding the Fourth Proportional to 12,848.60, 19,287.30 and 9,939.80

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Solution

The fourth proportional to 12,848.60, 19,287.30 and 9,939.80 is: 14,920.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,848.60 : 19,287.30 = 9,939.80 : x
  2. Step 2: Convert to fraction form
    12,848.60/19,287.30 = 9,939.80/x
  3. Step 3: Cross multiply
    12,848.60x = 19,287.30 × 9,939.80
  4. Step 4: Simplify right side
    12,848.60x = 191,711,904.54
  5. Step 5: Solve for x
    x = 191,711,904.54/12,848.60
  6. Step 6: Final answer
    x = 14,920.84

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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.