Home / 12,023.24-16,588.76-7,776.78

Finding the Fourth Proportional to 12,023.24, 16,588.76 and 7,776.78

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Solution

The fourth proportional to 12,023.24, 16,588.76 and 7,776.78 is: 10,729.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,023.24 : 16,588.76 = 7,776.78 : x
  2. Step 2: Convert to fraction form
    12,023.24/16,588.76 = 7,776.78/x
  3. Step 3: Cross multiply
    12,023.24x = 16,588.76 × 7,776.78
  4. Step 4: Simplify right side
    12,023.24x = 129,007,098.11
  5. Step 5: Solve for x
    x = 129,007,098.11/12,023.24
  6. Step 6: Final answer
    x = 10,729.82

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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.