Home / 11,133.20-15,360.09-6,417.38

Finding the Fourth Proportional to 11,133.20, 15,360.09 and 6,417.38

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Solution

The fourth proportional to 11,133.20, 15,360.09 and 6,417.38 is: 8,853.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.20 : 15,360.09 = 6,417.38 : x
  2. Step 2: Convert to fraction form
    11,133.20/15,360.09 = 6,417.38/x
  3. Step 3: Cross multiply
    11,133.20x = 15,360.09 × 6,417.38
  4. Step 4: Simplify right side
    11,133.20x = 98,571,534.36
  5. Step 5: Solve for x
    x = 98,571,534.36/11,133.20
  6. Step 6: Final answer
    x = 8,853.84

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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.