Home / 11,207.58-15,465.78-6,490.95

Finding the Fourth Proportional to 11,207.58, 15,465.78 and 6,490.95

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Solution

The fourth proportional to 11,207.58, 15,465.78 and 6,490.95 is: 8,957.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,207.58 : 15,465.78 = 6,490.95 : x
  2. Step 2: Convert to fraction form
    11,207.58/15,465.78 = 6,490.95/x
  3. Step 3: Cross multiply
    11,207.58x = 15,465.78 × 6,490.95
  4. Step 4: Simplify right side
    11,207.58x = 100,387,604.69
  5. Step 5: Solve for x
    x = 100,387,604.69/11,207.58
  6. Step 6: Final answer
    x = 8,957.12

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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.