Home / 11,515.08-17,281.16-8,560.36

Finding the Fourth Proportional to 11,515.08, 17,281.16 and 8,560.36

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Solution

The fourth proportional to 11,515.08, 17,281.16 and 8,560.36 is: 12,846.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.08 : 17,281.16 = 8,560.36 : x
  2. Step 2: Convert to fraction form
    11,515.08/17,281.16 = 8,560.36/x
  3. Step 3: Cross multiply
    11,515.08x = 17,281.16 × 8,560.36
  4. Step 4: Simplify right side
    11,515.08x = 147,932,950.82
  5. Step 5: Solve for x
    x = 147,932,950.82/11,515.08
  6. Step 6: Final answer
    x = 12,846.89

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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.