Home / 10,133.12-13,984.41-5,657.75

Finding the Fourth Proportional to 10,133.12, 13,984.41 and 5,657.75

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Solution

The fourth proportional to 10,133.12, 13,984.41 and 5,657.75 is: 7,808.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,133.12 : 13,984.41 = 5,657.75 : x
  2. Step 2: Convert to fraction form
    10,133.12/13,984.41 = 5,657.75/x
  3. Step 3: Cross multiply
    10,133.12x = 13,984.41 × 5,657.75
  4. Step 4: Simplify right side
    10,133.12x = 79,120,295.68
  5. Step 5: Solve for x
    x = 79,120,295.68/10,133.12
  6. Step 6: Final answer
    x = 7,808.09

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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.