Home / 16,511.70-22,790.21-10,139.82

Finding the Fourth Proportional to 16,511.70, 22,790.21 and 10,139.82

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Solution

The fourth proportional to 16,511.70, 22,790.21 and 10,139.82 is: 13,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,511.70 : 22,790.21 = 10,139.82 : x
  2. Step 2: Convert to fraction form
    16,511.70/22,790.21 = 10,139.82/x
  3. Step 3: Cross multiply
    16,511.70x = 22,790.21 × 10,139.82
  4. Step 4: Simplify right side
    16,511.70x = 231,088,627.16
  5. Step 5: Solve for x
    x = 231,088,627.16/16,511.70
  6. Step 6: Final answer
    x = 13,995.45

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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.