Home / 15,638.06-21,568.28-13,847.46

Finding the Fourth Proportional to 15,638.06, 21,568.28 and 13,847.46

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Solution

The fourth proportional to 15,638.06, 21,568.28 and 13,847.46 is: 19,098.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,638.06 : 21,568.28 = 13,847.46 : x
  2. Step 2: Convert to fraction form
    15,638.06/21,568.28 = 13,847.46/x
  3. Step 3: Cross multiply
    15,638.06x = 21,568.28 × 13,847.46
  4. Step 4: Simplify right side
    15,638.06x = 298,665,744.45
  5. Step 5: Solve for x
    x = 298,665,744.45/15,638.06
  6. Step 6: Final answer
    x = 19,098.64

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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.