Home / 13,507.04-20,255.70-5,716.40

Finding the Fourth Proportional to 13,507.04, 20,255.70 and 5,716.40

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Solution

The fourth proportional to 13,507.04, 20,255.70 and 5,716.40 is: 8,572.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507.04 : 20,255.70 = 5,716.40 : x
  2. Step 2: Convert to fraction form
    13,507.04/20,255.70 = 5,716.40/x
  3. Step 3: Cross multiply
    13,507.04x = 20,255.70 × 5,716.40
  4. Step 4: Simplify right side
    13,507.04x = 115,789,683.48
  5. Step 5: Solve for x
    x = 115,789,683.48/13,507.04
  6. Step 6: Final answer
    x = 8,572.54

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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.