Home / 14,349.75-21,525.45-5,115.75

Finding the Fourth Proportional to 14,349.75, 21,525.45 and 5,115.75

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Solution

The fourth proportional to 14,349.75, 21,525.45 and 5,115.75 is: 7,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,349.75 : 21,525.45 = 5,115.75 : x
  2. Step 2: Convert to fraction form
    14,349.75/21,525.45 = 5,115.75/x
  3. Step 3: Cross multiply
    14,349.75x = 21,525.45 × 5,115.75
  4. Step 4: Simplify right side
    14,349.75x = 110,118,820.84
  5. Step 5: Solve for x
    x = 110,118,820.84/14,349.75
  6. Step 6: Final answer
    x = 7,673.92

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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.