Home / 13,831.93-20,750.07-7,166.35

Finding the Fourth Proportional to 13,831.93, 20,750.07 and 7,166.35

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Solution

The fourth proportional to 13,831.93, 20,750.07 and 7,166.35 is: 10,750.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.93 : 20,750.07 = 7,166.35 : x
  2. Step 2: Convert to fraction form
    13,831.93/20,750.07 = 7,166.35/x
  3. Step 3: Cross multiply
    13,831.93x = 20,750.07 × 7,166.35
  4. Step 4: Simplify right side
    13,831.93x = 148,702,160.39
  5. Step 5: Solve for x
    x = 148,702,160.39/13,831.93
  6. Step 6: Final answer
    x = 10,750.65

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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.