Home / 10,990.91-16,488.64-4,417.61

Finding the Fourth Proportional to 10,990.91, 16,488.64 and 4,417.61

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Solution

The fourth proportional to 10,990.91, 16,488.64 and 4,417.61 is: 6,627.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.91 : 16,488.64 = 4,417.61 : x
  2. Step 2: Convert to fraction form
    10,990.91/16,488.64 = 4,417.61/x
  3. Step 3: Cross multiply
    10,990.91x = 16,488.64 × 4,417.61
  4. Step 4: Simplify right side
    10,990.91x = 72,840,291.60
  5. Step 5: Solve for x
    x = 72,840,291.60/10,990.91
  6. Step 6: Final answer
    x = 6,627.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.