Home / 10,391.24-15,587.32-3,813.84

Finding the Fourth Proportional to 10,391.24, 15,587.32 and 3,813.84

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Solution

The fourth proportional to 10,391.24, 15,587.32 and 3,813.84 is: 5,720.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.24 : 15,587.32 = 3,813.84 : x
  2. Step 2: Convert to fraction form
    10,391.24/15,587.32 = 3,813.84/x
  3. Step 3: Cross multiply
    10,391.24x = 15,587.32 × 3,813.84
  4. Step 4: Simplify right side
    10,391.24x = 59,447,490.82
  5. Step 5: Solve for x
    x = 59,447,490.82/10,391.24
  6. Step 6: Final answer
    x = 5,720.92

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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.