Home / 13,077.47-18,049.79-8,601.64

Finding the Fourth Proportional to 13,077.47, 18,049.79 and 8,601.64

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Solution

The fourth proportional to 13,077.47, 18,049.79 and 8,601.64 is: 11,872.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.47 : 18,049.79 = 8,601.64 : x
  2. Step 2: Convert to fraction form
    13,077.47/18,049.79 = 8,601.64/x
  3. Step 3: Cross multiply
    13,077.47x = 18,049.79 × 8,601.64
  4. Step 4: Simplify right side
    13,077.47x = 155,257,795.66
  5. Step 5: Solve for x
    x = 155,257,795.66/13,077.47
  6. Step 6: Final answer
    x = 11,872.16

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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.