Home / 11,140.50-15,372.30-6,359.70

Finding the Fourth Proportional to 11,140.50, 15,372.30 and 6,359.70

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Solution

The fourth proportional to 11,140.50, 15,372.30 and 6,359.70 is: 8,775.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.50 : 15,372.30 = 6,359.70 : x
  2. Step 2: Convert to fraction form
    11,140.50/15,372.30 = 6,359.70/x
  3. Step 3: Cross multiply
    11,140.50x = 15,372.30 × 6,359.70
  4. Step 4: Simplify right side
    11,140.50x = 97,763,216.31
  5. Step 5: Solve for x
    x = 97,763,216.31/11,140.50
  6. Step 6: Final answer
    x = 8,775.48

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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.