Home / 10,200.69-15,306.75-5,520.60

Finding the Fourth Proportional to 10,200.69, 15,306.75 and 5,520.60

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Solution

The fourth proportional to 10,200.69, 15,306.75 and 5,520.60 is: 8,283.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,200.69 : 15,306.75 = 5,520.60 : x
  2. Step 2: Convert to fraction form
    10,200.69/15,306.75 = 5,520.60/x
  3. Step 3: Cross multiply
    10,200.69x = 15,306.75 × 5,520.60
  4. Step 4: Simplify right side
    10,200.69x = 84,502,444.05
  5. Step 5: Solve for x
    x = 84,502,444.05/10,200.69
  6. Step 6: Final answer
    x = 8,283.99

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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.