Home / 18,283.16-27,420.48-5,136.80

Finding the Fourth Proportional to 18,283.16, 27,420.48 and 5,136.80

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Solution

The fourth proportional to 18,283.16, 27,420.48 and 5,136.80 is: 7,704.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,283.16 : 27,420.48 = 5,136.80 : x
  2. Step 2: Convert to fraction form
    18,283.16/27,420.48 = 5,136.80/x
  3. Step 3: Cross multiply
    18,283.16x = 27,420.48 × 5,136.80
  4. Step 4: Simplify right side
    18,283.16x = 140,853,521.66
  5. Step 5: Solve for x
    x = 140,853,521.66/18,283.16
  6. Step 6: Final answer
    x = 7,704.00

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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.