Home / 15,238.61-21,031.03-8,525.94

Finding the Fourth Proportional to 15,238.61, 21,031.03 and 8,525.94

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Solution

The fourth proportional to 15,238.61, 21,031.03 and 8,525.94 is: 11,766.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,238.61 : 21,031.03 = 8,525.94 : x
  2. Step 2: Convert to fraction form
    15,238.61/21,031.03 = 8,525.94/x
  3. Step 3: Cross multiply
    15,238.61x = 21,031.03 × 8,525.94
  4. Step 4: Simplify right side
    15,238.61x = 179,309,299.92
  5. Step 5: Solve for x
    x = 179,309,299.92/15,238.61
  6. Step 6: Final answer
    x = 11,766.77

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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.