Home / 11,018.26-15,206.86-7,042.02

Finding the Fourth Proportional to 11,018.26, 15,206.86 and 7,042.02

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Solution

The fourth proportional to 11,018.26, 15,206.86 and 7,042.02 is: 9,719.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,018.26 : 15,206.86 = 7,042.02 : x
  2. Step 2: Convert to fraction form
    11,018.26/15,206.86 = 7,042.02/x
  3. Step 3: Cross multiply
    11,018.26x = 15,206.86 × 7,042.02
  4. Step 4: Simplify right side
    11,018.26x = 107,087,012.26
  5. Step 5: Solve for x
    x = 107,087,012.26/11,018.26
  6. Step 6: Final answer
    x = 9,719.05

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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.