Home / 15,525.79-21,384.78-11,933.88

Finding the Fourth Proportional to 15,525.79, 21,384.78 and 11,933.88

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Solution

The fourth proportional to 15,525.79, 21,384.78 and 11,933.88 is: 16,437.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.79 : 21,384.78 = 11,933.88 : x
  2. Step 2: Convert to fraction form
    15,525.79/21,384.78 = 11,933.88/x
  3. Step 3: Cross multiply
    15,525.79x = 21,384.78 × 11,933.88
  4. Step 4: Simplify right side
    15,525.79x = 255,203,398.35
  5. Step 5: Solve for x
    x = 255,203,398.35/15,525.79
  6. Step 6: Final answer
    x = 16,437.39

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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.