Home / 12,070.85-18,110.22-5,831.58

Finding the Fourth Proportional to 12,070.85, 18,110.22 and 5,831.58

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Solution

The fourth proportional to 12,070.85, 18,110.22 and 5,831.58 is: 8,749.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,070.85 : 18,110.22 = 5,831.58 : x
  2. Step 2: Convert to fraction form
    12,070.85/18,110.22 = 5,831.58/x
  3. Step 3: Cross multiply
    12,070.85x = 18,110.22 × 5,831.58
  4. Step 4: Simplify right side
    12,070.85x = 105,611,241.93
  5. Step 5: Solve for x
    x = 105,611,241.93/12,070.85
  6. Step 6: Final answer
    x = 8,749.28

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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.