Home / 7,885.17-11,831.20-4,186.51

Finding the Fourth Proportional to 7,885.17, 11,831.20 and 4,186.51

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Solution

The fourth proportional to 7,885.17, 11,831.20 and 4,186.51 is: 6,281.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.17 : 11,831.20 = 4,186.51 : x
  2. Step 2: Convert to fraction form
    7,885.17/11,831.20 = 4,186.51/x
  3. Step 3: Cross multiply
    7,885.17x = 11,831.20 × 4,186.51
  4. Step 4: Simplify right side
    7,885.17x = 49,531,397.07
  5. Step 5: Solve for x
    x = 49,531,397.07/7,885.17
  6. Step 6: Final answer
    x = 6,281.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.