Home / 7,888.36-11,831.28-4,727.56

Finding the Fourth Proportional to 7,888.36, 11,831.28 and 4,727.56

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Solution

The fourth proportional to 7,888.36, 11,831.28 and 4,727.56 is: 7,090.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.36 : 11,831.28 = 4,727.56 : x
  2. Step 2: Convert to fraction form
    7,888.36/11,831.28 = 4,727.56/x
  3. Step 3: Cross multiply
    7,888.36x = 11,831.28 × 4,727.56
  4. Step 4: Simplify right side
    7,888.36x = 55,933,086.08
  5. Step 5: Solve for x
    x = 55,933,086.08/7,888.36
  6. Step 6: Final answer
    x = 7,090.58

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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.