Home / 11,452.21-15,803.70-6,416.30

Finding the Fourth Proportional to 11,452.21, 15,803.70 and 6,416.30

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Solution

The fourth proportional to 11,452.21, 15,803.70 and 6,416.30 is: 8,854.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,452.21 : 15,803.70 = 6,416.30 : x
  2. Step 2: Convert to fraction form
    11,452.21/15,803.70 = 6,416.30/x
  3. Step 3: Cross multiply
    11,452.21x = 15,803.70 × 6,416.30
  4. Step 4: Simplify right side
    11,452.21x = 101,401,280.31
  5. Step 5: Solve for x
    x = 101,401,280.31/11,452.21
  6. Step 6: Final answer
    x = 8,854.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.