Home / 13,921.17-20,886.36-9,259.53

Finding the Fourth Proportional to 13,921.17, 20,886.36 and 9,259.53

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Solution

The fourth proportional to 13,921.17, 20,886.36 and 9,259.53 is: 13,892.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.17 : 20,886.36 = 9,259.53 : x
  2. Step 2: Convert to fraction form
    13,921.17/20,886.36 = 9,259.53/x
  3. Step 3: Cross multiply
    13,921.17x = 20,886.36 × 9,259.53
  4. Step 4: Simplify right side
    13,921.17x = 193,397,877.01
  5. Step 5: Solve for x
    x = 193,397,877.01/13,921.17
  6. Step 6: Final answer
    x = 13,892.36

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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.