Home / 11,031.12-15,219.12-7,054.56

Finding the Fourth Proportional to 11,031.12, 15,219.12 and 7,054.56

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Solution

The fourth proportional to 11,031.12, 15,219.12 and 7,054.56 is: 9,732.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.12 : 15,219.12 = 7,054.56 : x
  2. Step 2: Convert to fraction form
    11,031.12/15,219.12 = 7,054.56/x
  3. Step 3: Cross multiply
    11,031.12x = 15,219.12 × 7,054.56
  4. Step 4: Simplify right side
    11,031.12x = 107,364,195.19
  5. Step 5: Solve for x
    x = 107,364,195.19/11,031.12
  6. Step 6: Final answer
    x = 9,732.85

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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.