Home / 15,240.09-21,031.75-8,526.88

Finding the Fourth Proportional to 15,240.09, 21,031.75 and 8,526.88

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Solution

The fourth proportional to 15,240.09, 21,031.75 and 8,526.88 is: 11,767.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.09 : 21,031.75 = 8,526.88 : x
  2. Step 2: Convert to fraction form
    15,240.09/21,031.75 = 8,526.88/x
  3. Step 3: Cross multiply
    15,240.09x = 21,031.75 × 8,526.88
  4. Step 4: Simplify right side
    15,240.09x = 179,335,245.39
  5. Step 5: Solve for x
    x = 179,335,245.39/15,240.09
  6. Step 6: Final answer
    x = 11,767.33

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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.