Home / 13,754.72-18,963.15-10,931.47

Finding the Fourth Proportional to 13,754.72, 18,963.15 and 10,931.47

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Solution

The fourth proportional to 13,754.72, 18,963.15 and 10,931.47 is: 15,070.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,754.72 : 18,963.15 = 10,931.47 : x
  2. Step 2: Convert to fraction form
    13,754.72/18,963.15 = 10,931.47/x
  3. Step 3: Cross multiply
    13,754.72x = 18,963.15 × 10,931.47
  4. Step 4: Simplify right side
    13,754.72x = 207,295,016.93
  5. Step 5: Solve for x
    x = 207,295,016.93/13,754.72
  6. Step 6: Final answer
    x = 15,070.83

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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.