Home / 11,021.32-16,515.76-8,686.92

Finding the Fourth Proportional to 11,021.32, 16,515.76 and 8,686.92

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Solution

The fourth proportional to 11,021.32, 16,515.76 and 8,686.92 is: 13,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.32 : 16,515.76 = 8,686.92 : x
  2. Step 2: Convert to fraction form
    11,021.32/16,515.76 = 8,686.92/x
  3. Step 3: Cross multiply
    11,021.32x = 16,515.76 × 8,686.92
  4. Step 4: Simplify right side
    11,021.32x = 143,471,085.86
  5. Step 5: Solve for x
    x = 143,471,085.86/11,021.32
  6. Step 6: Final answer
    x = 13,017.60

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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.