Home / 11,114.50-15,338.01-6,400.30

Finding the Fourth Proportional to 11,114.50, 15,338.01 and 6,400.30

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Solution

The fourth proportional to 11,114.50, 15,338.01 and 6,400.30 is: 8,832.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.50 : 15,338.01 = 6,400.30 : x
  2. Step 2: Convert to fraction form
    11,114.50/15,338.01 = 6,400.30/x
  3. Step 3: Cross multiply
    11,114.50x = 15,338.01 × 6,400.30
  4. Step 4: Simplify right side
    11,114.50x = 98,167,865.40
  5. Step 5: Solve for x
    x = 98,167,865.40/11,114.50
  6. Step 6: Final answer
    x = 8,832.41

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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.