Home / 15,525.24-21,425.40-8,811.48

Finding the Fourth Proportional to 15,525.24, 21,425.40 and 8,811.48

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Solution

The fourth proportional to 15,525.24, 21,425.40 and 8,811.48 is: 12,160.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.24 : 21,425.40 = 8,811.48 : x
  2. Step 2: Convert to fraction form
    15,525.24/21,425.40 = 8,811.48/x
  3. Step 3: Cross multiply
    15,525.24x = 21,425.40 × 8,811.48
  4. Step 4: Simplify right side
    15,525.24x = 188,789,483.59
  5. Step 5: Solve for x
    x = 188,789,483.59/15,525.24
  6. Step 6: Final answer
    x = 12,160.17

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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.