Home / 9,726.81-13,477.20-9,516.61

Finding the Fourth Proportional to 9,726.81, 13,477.20 and 9,516.61

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Solution

The fourth proportional to 9,726.81, 13,477.20 and 9,516.61 is: 13,185.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,726.81 : 13,477.20 = 9,516.61 : x
  2. Step 2: Convert to fraction form
    9,726.81/13,477.20 = 9,516.61/x
  3. Step 3: Cross multiply
    9,726.81x = 13,477.20 × 9,516.61
  4. Step 4: Simplify right side
    9,726.81x = 128,257,273.14
  5. Step 5: Solve for x
    x = 128,257,273.14/9,726.81
  6. Step 6: Final answer
    x = 13,185.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.