Home / 9,011.20-13,511.68-3,814.40

Finding the Fourth Proportional to 9,011.20, 13,511.68 and 3,814.40

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Solution

The fourth proportional to 9,011.20, 13,511.68 and 3,814.40 is: 5,719.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,011.20 : 13,511.68 = 3,814.40 : x
  2. Step 2: Convert to fraction form
    9,011.20/13,511.68 = 3,814.40/x
  3. Step 3: Cross multiply
    9,011.20x = 13,511.68 × 3,814.40
  4. Step 4: Simplify right side
    9,011.20x = 51,538,952.19
  5. Step 5: Solve for x
    x = 51,538,952.19/9,011.20
  6. Step 6: Final answer
    x = 5,719.43

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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.