Home / 15,604.72-21,534.06-8,530.99

Finding the Fourth Proportional to 15,604.72, 21,534.06 and 8,530.99

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Solution

The fourth proportional to 15,604.72, 21,534.06 and 8,530.99 is: 11,772.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.72 : 21,534.06 = 8,530.99 : x
  2. Step 2: Convert to fraction form
    15,604.72/21,534.06 = 8,530.99/x
  3. Step 3: Cross multiply
    15,604.72x = 21,534.06 × 8,530.99
  4. Step 4: Simplify right side
    15,604.72x = 183,706,850.52
  5. Step 5: Solve for x
    x = 183,706,850.52/15,604.72
  6. Step 6: Final answer
    x = 11,772.52

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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.