Home / 11,840.78-17,759.76-9,210.92

Finding the Fourth Proportional to 11,840.78, 17,759.76 and 9,210.92

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Solution

The fourth proportional to 11,840.78, 17,759.76 and 9,210.92 is: 13,815.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.78 : 17,759.76 = 9,210.92 : x
  2. Step 2: Convert to fraction form
    11,840.78/17,759.76 = 9,210.92/x
  3. Step 3: Cross multiply
    11,840.78x = 17,759.76 × 9,210.92
  4. Step 4: Simplify right side
    11,840.78x = 163,583,605.24
  5. Step 5: Solve for x
    x = 163,583,605.24/11,840.78
  6. Step 6: Final answer
    x = 13,815.27

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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.