Home / 16,379.72-22,603.10-9,663.81

Finding the Fourth Proportional to 16,379.72, 22,603.10 and 9,663.81

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Solution

The fourth proportional to 16,379.72, 22,603.10 and 9,663.81 is: 13,335.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,379.72 : 22,603.10 = 9,663.81 : x
  2. Step 2: Convert to fraction form
    16,379.72/22,603.10 = 9,663.81/x
  3. Step 3: Cross multiply
    16,379.72x = 22,603.10 × 9,663.81
  4. Step 4: Simplify right side
    16,379.72x = 218,431,985.09
  5. Step 5: Solve for x
    x = 218,431,985.09/16,379.72
  6. Step 6: Final answer
    x = 13,335.52

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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.