Home / 11,280.79-16,840.45-9,804.97

Finding the Fourth Proportional to 11,280.79, 16,840.45 and 9,804.97

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Solution

The fourth proportional to 11,280.79, 16,840.45 and 9,804.97 is: 14,637.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.79 : 16,840.45 = 9,804.97 : x
  2. Step 2: Convert to fraction form
    11,280.79/16,840.45 = 9,804.97/x
  3. Step 3: Cross multiply
    11,280.79x = 16,840.45 × 9,804.97
  4. Step 4: Simplify right side
    11,280.79x = 165,120,107.04
  5. Step 5: Solve for x
    x = 165,120,107.04/11,280.79
  6. Step 6: Final answer
    x = 14,637.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.