Home / 15,240.32-21,031.46-8,525.84

Finding the Fourth Proportional to 15,240.32, 21,031.46 and 8,525.84

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Solution

The fourth proportional to 15,240.32, 21,031.46 and 8,525.84 is: 11,765.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.32 : 21,031.46 = 8,525.84 : x
  2. Step 2: Convert to fraction form
    15,240.32/21,031.46 = 8,525.84/x
  3. Step 3: Cross multiply
    15,240.32x = 21,031.46 × 8,525.84
  4. Step 4: Simplify right side
    15,240.32x = 179,310,862.93
  5. Step 5: Solve for x
    x = 179,310,862.93/15,240.32
  6. Step 6: Final answer
    x = 11,765.56

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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.