Home / 15,240.06-21,031.16-8,525.70

Finding the Fourth Proportional to 15,240.06, 21,031.16 and 8,525.70

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Solution

The fourth proportional to 15,240.06, 21,031.16 and 8,525.70 is: 11,765.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.06 : 21,031.16 = 8,525.70 : x
  2. Step 2: Convert to fraction form
    15,240.06/21,031.16 = 8,525.70/x
  3. Step 3: Cross multiply
    15,240.06x = 21,031.16 × 8,525.70
  4. Step 4: Simplify right side
    15,240.06x = 179,305,318.18
  5. Step 5: Solve for x
    x = 179,305,318.18/15,240.06
  6. Step 6: Final answer
    x = 11,765.39

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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.