Home / 8,905.84-13,351.56-3,715.60

Finding the Fourth Proportional to 8,905.84, 13,351.56 and 3,715.60

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Solution

The fourth proportional to 8,905.84, 13,351.56 and 3,715.60 is: 5,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.84 : 13,351.56 = 3,715.60 : x
  2. Step 2: Convert to fraction form
    8,905.84/13,351.56 = 3,715.60/x
  3. Step 3: Cross multiply
    8,905.84x = 13,351.56 × 3,715.60
  4. Step 4: Simplify right side
    8,905.84x = 49,609,056.34
  5. Step 5: Solve for x
    x = 49,609,056.34/8,905.84
  6. Step 6: Final answer
    x = 5,570.40

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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.