Home / 11,113.27-15,335.60-6,399.07

Finding the Fourth Proportional to 11,113.27, 15,335.60 and 6,399.07

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Solution

The fourth proportional to 11,113.27, 15,335.60 and 6,399.07 is: 8,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.27 : 15,335.60 = 6,399.07 : x
  2. Step 2: Convert to fraction form
    11,113.27/15,335.60 = 6,399.07/x
  3. Step 3: Cross multiply
    11,113.27x = 15,335.60 × 6,399.07
  4. Step 4: Simplify right side
    11,113.27x = 98,133,507.56
  5. Step 5: Solve for x
    x = 98,133,507.56/11,113.27
  6. Step 6: Final answer
    x = 8,830.30

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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.