Home / 10,355.72-15,525.05-3,777.71

Finding the Fourth Proportional to 10,355.72, 15,525.05 and 3,777.71

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Solution

The fourth proportional to 10,355.72, 15,525.05 and 3,777.71 is: 5,663.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.72 : 15,525.05 = 3,777.71 : x
  2. Step 2: Convert to fraction form
    10,355.72/15,525.05 = 3,777.71/x
  3. Step 3: Cross multiply
    10,355.72x = 15,525.05 × 3,777.71
  4. Step 4: Simplify right side
    10,355.72x = 58,649,040.12
  5. Step 5: Solve for x
    x = 58,649,040.12/10,355.72
  6. Step 6: Final answer
    x = 5,663.45

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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.