Home / 11,320.28-16,981.33-4,303.65

Finding the Fourth Proportional to 11,320.28, 16,981.33 and 4,303.65

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Solution

The fourth proportional to 11,320.28, 16,981.33 and 4,303.65 is: 6,455.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.28 : 16,981.33 = 4,303.65 : x
  2. Step 2: Convert to fraction form
    11,320.28/16,981.33 = 4,303.65/x
  3. Step 3: Cross multiply
    11,320.28x = 16,981.33 × 4,303.65
  4. Step 4: Simplify right side
    11,320.28x = 73,081,700.85
  5. Step 5: Solve for x
    x = 73,081,700.85/11,320.28
  6. Step 6: Final answer
    x = 6,455.82

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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.