Home / 15,335.46-21,183.93-13,002.66

Finding the Fourth Proportional to 15,335.46, 21,183.93 and 13,002.66

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Solution

The fourth proportional to 15,335.46, 21,183.93 and 13,002.66 is: 17,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,335.46 : 21,183.93 = 13,002.66 : x
  2. Step 2: Convert to fraction form
    15,335.46/21,183.93 = 13,002.66/x
  3. Step 3: Cross multiply
    15,335.46x = 21,183.93 × 13,002.66
  4. Step 4: Simplify right side
    15,335.46x = 275,447,439.25
  5. Step 5: Solve for x
    x = 275,447,439.25/15,335.46
  6. Step 6: Final answer
    x = 17,961.47

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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.