Home / 12,123.24-16,729.70-7,346.00

Finding the Fourth Proportional to 12,123.24, 16,729.70 and 7,346.00

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Solution

The fourth proportional to 12,123.24, 16,729.70 and 7,346.00 is: 10,137.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123.24 : 16,729.70 = 7,346.00 : x
  2. Step 2: Convert to fraction form
    12,123.24/16,729.70 = 7,346.00/x
  3. Step 3: Cross multiply
    12,123.24x = 16,729.70 × 7,346.00
  4. Step 4: Simplify right side
    12,123.24x = 122,896,381.29
  5. Step 5: Solve for x
    x = 122,896,381.29/12,123.24
  6. Step 6: Final answer
    x = 10,137.26

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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.