Home / 16,043.57-22,139.75-8,970.65

Finding the Fourth Proportional to 16,043.57, 22,139.75 and 8,970.65

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Solution

The fourth proportional to 16,043.57, 22,139.75 and 8,970.65 is: 12,379.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,043.57 : 22,139.75 = 8,970.65 : x
  2. Step 2: Convert to fraction form
    16,043.57/22,139.75 = 8,970.65/x
  3. Step 3: Cross multiply
    16,043.57x = 22,139.75 × 8,970.65
  4. Step 4: Simplify right side
    16,043.57x = 198,607,792.79
  5. Step 5: Solve for x
    x = 198,607,792.79/16,043.57
  6. Step 6: Final answer
    x = 12,379.28

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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.