Home / 10,255.41-14,154.14-5,780.36

Finding the Fourth Proportional to 10,255.41, 14,154.14 and 5,780.36

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Solution

The fourth proportional to 10,255.41, 14,154.14 and 5,780.36 is: 7,977.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.41 : 14,154.14 = 5,780.36 : x
  2. Step 2: Convert to fraction form
    10,255.41/14,154.14 = 5,780.36/x
  3. Step 3: Cross multiply
    10,255.41x = 14,154.14 × 5,780.36
  4. Step 4: Simplify right side
    10,255.41x = 81,816,074.53
  5. Step 5: Solve for x
    x = 81,816,074.53/10,255.41
  6. Step 6: Final answer
    x = 7,977.85

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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.