Home / 10,532.89-15,801.40-3,512.80

Finding the Fourth Proportional to 10,532.89, 15,801.40 and 3,512.80

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Solution

The fourth proportional to 10,532.89, 15,801.40 and 3,512.80 is: 5,269.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,532.89 : 15,801.40 = 3,512.80 : x
  2. Step 2: Convert to fraction form
    10,532.89/15,801.40 = 3,512.80/x
  3. Step 3: Cross multiply
    10,532.89x = 15,801.40 × 3,512.80
  4. Step 4: Simplify right side
    10,532.89x = 55,507,162.30
  5. Step 5: Solve for x
    x = 55,507,162.30/10,532.89
  6. Step 6: Final answer
    x = 5,269.89

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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.