Home / 12,123.30-16,730.01-6,745.71

Finding the Fourth Proportional to 12,123.30, 16,730.01 and 6,745.71

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Solution

The fourth proportional to 12,123.30, 16,730.01 and 6,745.71 is: 9,309.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123.30 : 16,730.01 = 6,745.71 : x
  2. Step 2: Convert to fraction form
    12,123.30/16,730.01 = 6,745.71/x
  3. Step 3: Cross multiply
    12,123.30x = 16,730.01 × 6,745.71
  4. Step 4: Simplify right side
    12,123.30x = 112,855,712.11
  5. Step 5: Solve for x
    x = 112,855,712.11/12,123.30
  6. Step 6: Final answer
    x = 9,309.00

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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.