Home / 17,787.60-26,681.40-9,914.40

Finding the Fourth Proportional to 17,787.60, 26,681.40 and 9,914.40

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Solution

The fourth proportional to 17,787.60, 26,681.40 and 9,914.40 is: 14,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,787.60 : 26,681.40 = 9,914.40 : x
  2. Step 2: Convert to fraction form
    17,787.60/26,681.40 = 9,914.40/x
  3. Step 3: Cross multiply
    17,787.60x = 26,681.40 × 9,914.40
  4. Step 4: Simplify right side
    17,787.60x = 264,530,072.16
  5. Step 5: Solve for x
    x = 264,530,072.16/17,787.60
  6. Step 6: Final answer
    x = 14,871.60

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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.