Home / 11,090.31-15,182.12-11,011.20

Finding the Fourth Proportional to 11,090.31, 15,182.12 and 11,011.20

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Solution

The fourth proportional to 11,090.31, 15,182.12 and 11,011.20 is: 15,073.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,090.31 : 15,182.12 = 11,011.20 : x
  2. Step 2: Convert to fraction form
    11,090.31/15,182.12 = 11,011.20/x
  3. Step 3: Cross multiply
    11,090.31x = 15,182.12 × 11,011.20
  4. Step 4: Simplify right side
    11,090.31x = 167,173,359.74
  5. Step 5: Solve for x
    x = 167,173,359.74/11,090.31
  6. Step 6: Final answer
    x = 15,073.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.