Home / 19,401.12-26,765.28-12,218.28

Finding the Fourth Proportional to 19,401.12, 26,765.28 and 12,218.28

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Solution

The fourth proportional to 19,401.12, 26,765.28 and 12,218.28 is: 16,856.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,401.12 : 26,765.28 = 12,218.28 : x
  2. Step 2: Convert to fraction form
    19,401.12/26,765.28 = 12,218.28/x
  3. Step 3: Cross multiply
    19,401.12x = 26,765.28 × 12,218.28
  4. Step 4: Simplify right side
    19,401.12x = 327,025,685.32
  5. Step 5: Solve for x
    x = 327,025,685.32/19,401.12
  6. Step 6: Final answer
    x = 16,856.02

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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.