Home / 13,655.48-20,476.89-7,086.26

Finding the Fourth Proportional to 13,655.48, 20,476.89 and 7,086.26

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Solution

The fourth proportional to 13,655.48, 20,476.89 and 7,086.26 is: 10,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.48 : 20,476.89 = 7,086.26 : x
  2. Step 2: Convert to fraction form
    13,655.48/20,476.89 = 7,086.26/x
  3. Step 3: Cross multiply
    13,655.48x = 20,476.89 × 7,086.26
  4. Step 4: Simplify right side
    13,655.48x = 145,104,464.15
  5. Step 5: Solve for x
    x = 145,104,464.15/13,655.48
  6. Step 6: Final answer
    x = 10,626.10

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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.