Home / 9,427.60-14,136.80-3,880

Finding the Fourth Proportional to 9,427.60, 14,136.80 and 3,880

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Solution

The fourth proportional to 9,427.60, 14,136.80 and 3,880 is: 5,818.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,427.60 : 14,136.80 = 3,880 : x
  2. Step 2: Convert to fraction form
    9,427.60/14,136.80 = 3,880/x
  3. Step 3: Cross multiply
    9,427.60x = 14,136.80 × 3,880
  4. Step 4: Simplify right side
    9,427.60x = 54,850,784
  5. Step 5: Solve for x
    x = 54,850,784/9,427.60
  6. Step 6: Final answer
    x = 5,818.11

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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.