Home / 8,187.39-11,298.10-4,831.25

Finding the Fourth Proportional to 8,187.39, 11,298.10 and 4,831.25

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Solution

The fourth proportional to 8,187.39, 11,298.10 and 4,831.25 is: 6,666.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.39 : 11,298.10 = 4,831.25 : x
  2. Step 2: Convert to fraction form
    8,187.39/11,298.10 = 4,831.25/x
  3. Step 3: Cross multiply
    8,187.39x = 11,298.10 × 4,831.25
  4. Step 4: Simplify right side
    8,187.39x = 54,583,921.47
  5. Step 5: Solve for x
    x = 54,583,921.47/8,187.39
  6. Step 6: Final answer
    x = 6,666.83

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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.