Home / 14,515.84-21,776.96-5,281.60

Finding the Fourth Proportional to 14,515.84, 21,776.96 and 5,281.60

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Solution

The fourth proportional to 14,515.84, 21,776.96 and 5,281.60 is: 7,923.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.84 : 21,776.96 = 5,281.60 : x
  2. Step 2: Convert to fraction form
    14,515.84/21,776.96 = 5,281.60/x
  3. Step 3: Cross multiply
    14,515.84x = 21,776.96 × 5,281.60
  4. Step 4: Simplify right side
    14,515.84x = 115,017,191.94
  5. Step 5: Solve for x
    x = 115,017,191.94/14,515.84
  6. Step 6: Final answer
    x = 7,923.56

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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.