Home / 14,965.40-22,448.10-5,115.80

Finding the Fourth Proportional to 14,965.40, 22,448.10 and 5,115.80

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Solution

The fourth proportional to 14,965.40, 22,448.10 and 5,115.80 is: 7,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,965.40 : 22,448.10 = 5,115.80 : x
  2. Step 2: Convert to fraction form
    14,965.40/22,448.10 = 5,115.80/x
  3. Step 3: Cross multiply
    14,965.40x = 22,448.10 × 5,115.80
  4. Step 4: Simplify right side
    14,965.40x = 114,839,989.98
  5. Step 5: Solve for x
    x = 114,839,989.98/14,965.40
  6. Step 6: Final answer
    x = 7,673.70

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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.