Home / 15,021.80-22,532.70-5,160.20

Finding the Fourth Proportional to 15,021.80, 22,532.70 and 5,160.20

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Solution

The fourth proportional to 15,021.80, 22,532.70 and 5,160.20 is: 7,740.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,021.80 : 22,532.70 = 5,160.20 : x
  2. Step 2: Convert to fraction form
    15,021.80/22,532.70 = 5,160.20/x
  3. Step 3: Cross multiply
    15,021.80x = 22,532.70 × 5,160.20
  4. Step 4: Simplify right side
    15,021.80x = 116,273,238.54
  5. Step 5: Solve for x
    x = 116,273,238.54/15,021.80
  6. Step 6: Final answer
    x = 7,740.30

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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.