Home / 12,831.79-19,248.18-4,066.69

Finding the Fourth Proportional to 12,831.79, 19,248.18 and 4,066.69

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Solution

The fourth proportional to 12,831.79, 19,248.18 and 4,066.69 is: 6,100.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831.79 : 19,248.18 = 4,066.69 : x
  2. Step 2: Convert to fraction form
    12,831.79/19,248.18 = 4,066.69/x
  3. Step 3: Cross multiply
    12,831.79x = 19,248.18 × 4,066.69
  4. Step 4: Simplify right side
    12,831.79x = 78,276,381.12
  5. Step 5: Solve for x
    x = 78,276,381.12/12,831.79
  6. Step 6: Final answer
    x = 6,100.19

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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.