Home / 10,538.80-15,817.07-5,272.24

Finding the Fourth Proportional to 10,538.80, 15,817.07 and 5,272.24

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Solution

The fourth proportional to 10,538.80, 15,817.07 and 5,272.24 is: 7,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.80 : 15,817.07 = 5,272.24 : x
  2. Step 2: Convert to fraction form
    10,538.80/15,817.07 = 5,272.24/x
  3. Step 3: Cross multiply
    10,538.80x = 15,817.07 × 5,272.24
  4. Step 4: Simplify right side
    10,538.80x = 83,391,389.14
  5. Step 5: Solve for x
    x = 83,391,389.14/10,538.80
  6. Step 6: Final answer
    x = 7,912.80

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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.