Home / 11,840.60-17,759.52-9,878.72

Finding the Fourth Proportional to 11,840.60, 17,759.52 and 9,878.72

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Solution

The fourth proportional to 11,840.60, 17,759.52 and 9,878.72 is: 14,816.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.60 : 17,759.52 = 9,878.72 : x
  2. Step 2: Convert to fraction form
    11,840.60/17,759.52 = 9,878.72/x
  3. Step 3: Cross multiply
    11,840.60x = 17,759.52 × 9,878.72
  4. Step 4: Simplify right side
    11,840.60x = 175,441,325.41
  5. Step 5: Solve for x
    x = 175,441,325.41/11,840.60
  6. Step 6: Final answer
    x = 14,816.93

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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.