Home / 14,006.80-21,010.17-4,772.80

Finding the Fourth Proportional to 14,006.80, 21,010.17 and 4,772.80

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Solution

The fourth proportional to 14,006.80, 21,010.17 and 4,772.80 is: 7,159.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.80 : 21,010.17 = 4,772.80 : x
  2. Step 2: Convert to fraction form
    14,006.80/21,010.17 = 4,772.80/x
  3. Step 3: Cross multiply
    14,006.80x = 21,010.17 × 4,772.80
  4. Step 4: Simplify right side
    14,006.80x = 100,277,339.38
  5. Step 5: Solve for x
    x = 100,277,339.38/14,006.80
  6. Step 6: Final answer
    x = 7,159.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.