Home / 18,548.40-27,817.05-9,778.53

Finding the Fourth Proportional to 18,548.40, 27,817.05 and 9,778.53

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Solution

The fourth proportional to 18,548.40, 27,817.05 and 9,778.53 is: 14,664.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,548.40 : 27,817.05 = 9,778.53 : x
  2. Step 2: Convert to fraction form
    18,548.40/27,817.05 = 9,778.53/x
  3. Step 3: Cross multiply
    18,548.40x = 27,817.05 × 9,778.53
  4. Step 4: Simplify right side
    18,548.40x = 272,009,857.94
  5. Step 5: Solve for x
    x = 272,009,857.94/18,548.40
  6. Step 6: Final answer
    x = 14,664.87

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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.