Home / 8,750.90-13,131.81-5,831.25

Finding the Fourth Proportional to 8,750.90, 13,131.81 and 5,831.25

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Solution

The fourth proportional to 8,750.90, 13,131.81 and 5,831.25 is: 8,750.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.90 : 13,131.81 = 5,831.25 : x
  2. Step 2: Convert to fraction form
    8,750.90/13,131.81 = 5,831.25/x
  3. Step 3: Cross multiply
    8,750.90x = 13,131.81 × 5,831.25
  4. Step 4: Simplify right side
    8,750.90x = 76,574,867.06
  5. Step 5: Solve for x
    x = 76,574,867.06/8,750.90
  6. Step 6: Final answer
    x = 8,750.52

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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.