Home / 15,604.50-21,534.03-8,530.86

Finding the Fourth Proportional to 15,604.50, 21,534.03 and 8,530.86

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Solution

The fourth proportional to 15,604.50, 21,534.03 and 8,530.86 is: 11,772.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.50 : 21,534.03 = 8,530.86 : x
  2. Step 2: Convert to fraction form
    15,604.50/21,534.03 = 8,530.86/x
  3. Step 3: Cross multiply
    15,604.50x = 21,534.03 × 8,530.86
  4. Step 4: Simplify right side
    15,604.50x = 183,703,795.17
  5. Step 5: Solve for x
    x = 183,703,795.17/15,604.50
  6. Step 6: Final answer
    x = 11,772.49

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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.