Home / 10,126.80-15,166.71-9,776.39

Finding the Fourth Proportional to 10,126.80, 15,166.71 and 9,776.39

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Solution

The fourth proportional to 10,126.80, 15,166.71 and 9,776.39 is: 14,641.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.80 : 15,166.71 = 9,776.39 : x
  2. Step 2: Convert to fraction form
    10,126.80/15,166.71 = 9,776.39/x
  3. Step 3: Cross multiply
    10,126.80x = 15,166.71 × 9,776.39
  4. Step 4: Simplify right side
    10,126.80x = 148,275,596.14
  5. Step 5: Solve for x
    x = 148,275,596.14/10,126.80
  6. Step 6: Final answer
    x = 14,641.90

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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.