Home / 10,015.76-15,021.30-3,776.39

Finding the Fourth Proportional to 10,015.76, 15,021.30 and 3,776.39

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Solution

The fourth proportional to 10,015.76, 15,021.30 and 3,776.39 is: 5,663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.76 : 15,021.30 = 3,776.39 : x
  2. Step 2: Convert to fraction form
    10,015.76/15,021.30 = 3,776.39/x
  3. Step 3: Cross multiply
    10,015.76x = 15,021.30 × 3,776.39
  4. Step 4: Simplify right side
    10,015.76x = 56,726,287.11
  5. Step 5: Solve for x
    x = 56,726,287.11/10,015.76
  6. Step 6: Final answer
    x = 5,663.70

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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.