Home / 9,685.44-13,365.66-5,706.72

Finding the Fourth Proportional to 9,685.44, 13,365.66 and 5,706.72

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Solution

The fourth proportional to 9,685.44, 13,365.66 and 5,706.72 is: 7,875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,685.44 : 13,365.66 = 5,706.72 : x
  2. Step 2: Convert to fraction form
    9,685.44/13,365.66 = 5,706.72/x
  3. Step 3: Cross multiply
    9,685.44x = 13,365.66 × 5,706.72
  4. Step 4: Simplify right side
    9,685.44x = 76,274,079.24
  5. Step 5: Solve for x
    x = 76,274,079.24/9,685.44
  6. Step 6: Final answer
    x = 7,875.13

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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.