Home / 15,604.40-21,534.10-8,530.83

Finding the Fourth Proportional to 15,604.40, 21,534.10 and 8,530.83

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Solution

The fourth proportional to 15,604.40, 21,534.10 and 8,530.83 is: 11,772.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.40 : 21,534.10 = 8,530.83 : x
  2. Step 2: Convert to fraction form
    15,604.40/21,534.10 = 8,530.83/x
  3. Step 3: Cross multiply
    15,604.40x = 21,534.10 × 8,530.83
  4. Step 4: Simplify right side
    15,604.40x = 183,703,724.98
  5. Step 5: Solve for x
    x = 183,703,724.98/15,604.40
  6. Step 6: Final answer
    x = 11,772.56

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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.