Home / 12,831.85-19,220.76-6,572.84

Finding the Fourth Proportional to 12,831.85, 19,220.76 and 6,572.84

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Solution

The fourth proportional to 12,831.85, 19,220.76 and 6,572.84 is: 9,845.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831.85 : 19,220.76 = 6,572.84 : x
  2. Step 2: Convert to fraction form
    12,831.85/19,220.76 = 6,572.84/x
  3. Step 3: Cross multiply
    12,831.85x = 19,220.76 × 6,572.84
  4. Step 4: Simplify right side
    12,831.85x = 126,334,980.16
  5. Step 5: Solve for x
    x = 126,334,980.16/12,831.85
  6. Step 6: Final answer
    x = 9,845.42

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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.