Home / 12,831.64-17,708.02-7,243

Finding the Fourth Proportional to 12,831.64, 17,708.02 and 7,243

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Solution

The fourth proportional to 12,831.64, 17,708.02 and 7,243 is: 9,995.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831.64 : 17,708.02 = 7,243 : x
  2. Step 2: Convert to fraction form
    12,831.64/17,708.02 = 7,243/x
  3. Step 3: Cross multiply
    12,831.64x = 17,708.02 × 7,243
  4. Step 4: Simplify right side
    12,831.64x = 128,259,188.86
  5. Step 5: Solve for x
    x = 128,259,188.86/12,831.64
  6. Step 6: Final answer
    x = 9,995.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.