Home / 12,020.91-16,588.55-6,715.76

Finding the Fourth Proportional to 12,020.91, 16,588.55 and 6,715.76

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Solution

The fourth proportional to 12,020.91, 16,588.55 and 6,715.76 is: 9,267.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.91 : 16,588.55 = 6,715.76 : x
  2. Step 2: Convert to fraction form
    12,020.91/16,588.55 = 6,715.76/x
  3. Step 3: Cross multiply
    12,020.91x = 16,588.55 × 6,715.76
  4. Step 4: Simplify right side
    12,020.91x = 111,404,709.93
  5. Step 5: Solve for x
    x = 111,404,709.93/12,020.91
  6. Step 6: Final answer
    x = 9,267.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.