Home / 16,043.69-22,139.92-8,970.77

Finding the Fourth Proportional to 16,043.69, 22,139.92 and 8,970.77

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Solution

The fourth proportional to 16,043.69, 22,139.92 and 8,970.77 is: 12,379.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,043.69 : 22,139.92 = 8,970.77 : x
  2. Step 2: Convert to fraction form
    16,043.69/22,139.92 = 8,970.77/x
  3. Step 3: Cross multiply
    16,043.69x = 22,139.92 × 8,970.77
  4. Step 4: Simplify right side
    16,043.69x = 198,612,130.14
  5. Step 5: Solve for x
    x = 198,612,130.14/16,043.69
  6. Step 6: Final answer
    x = 12,379.45

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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.