Home / 10,523.20-15,783.28-3,127.36

Finding the Fourth Proportional to 10,523.20, 15,783.28 and 3,127.36

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Solution

The fourth proportional to 10,523.20, 15,783.28 and 3,127.36 is: 4,690.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,523.20 : 15,783.28 = 3,127.36 : x
  2. Step 2: Convert to fraction form
    10,523.20/15,783.28 = 3,127.36/x
  3. Step 3: Cross multiply
    10,523.20x = 15,783.28 × 3,127.36
  4. Step 4: Simplify right side
    10,523.20x = 49,359,998.54
  5. Step 5: Solve for x
    x = 49,359,998.54/10,523.20
  6. Step 6: Final answer
    x = 4,690.59

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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.