Home / 7,831.51-10,807.88-4,996.61

Finding the Fourth Proportional to 7,831.51, 10,807.88 and 4,996.61

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Solution

The fourth proportional to 7,831.51, 10,807.88 and 4,996.61 is: 6,895.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.51 : 10,807.88 = 4,996.61 : x
  2. Step 2: Convert to fraction form
    7,831.51/10,807.88 = 4,996.61/x
  3. Step 3: Cross multiply
    7,831.51x = 10,807.88 × 4,996.61
  4. Step 4: Simplify right side
    7,831.51x = 54,002,781.30
  5. Step 5: Solve for x
    x = 54,002,781.30/7,831.51
  6. Step 6: Final answer
    x = 6,895.58

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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.