Home / 16,371.23-22,602.89-12,779.99

Finding the Fourth Proportional to 16,371.23, 22,602.89 and 12,779.99

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Solution

The fourth proportional to 16,371.23, 22,602.89 and 12,779.99 is: 17,644.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,371.23 : 22,602.89 = 12,779.99 : x
  2. Step 2: Convert to fraction form
    16,371.23/22,602.89 = 12,779.99/x
  3. Step 3: Cross multiply
    16,371.23x = 22,602.89 × 12,779.99
  4. Step 4: Simplify right side
    16,371.23x = 288,864,708.17
  5. Step 5: Solve for x
    x = 288,864,708.17/16,371.23
  6. Step 6: Final answer
    x = 17,644.66

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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.