Home / 11,190.56-15,434.52-7,407.08

Finding the Fourth Proportional to 11,190.56, 15,434.52 and 7,407.08

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Solution

The fourth proportional to 11,190.56, 15,434.52 and 7,407.08 is: 10,216.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.56 : 15,434.52 = 7,407.08 : x
  2. Step 2: Convert to fraction form
    11,190.56/15,434.52 = 7,407.08/x
  3. Step 3: Cross multiply
    11,190.56x = 15,434.52 × 7,407.08
  4. Step 4: Simplify right side
    11,190.56x = 114,324,724.40
  5. Step 5: Solve for x
    x = 114,324,724.40/11,190.56
  6. Step 6: Final answer
    x = 10,216.18

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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.