Home / 18,831.02-26,021.20-13,717.64

Finding the Fourth Proportional to 18,831.02, 26,021.20 and 13,717.64

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Solution

The fourth proportional to 18,831.02, 26,021.20 and 13,717.64 is: 18,955.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.02 : 26,021.20 = 13,717.64 : x
  2. Step 2: Convert to fraction form
    18,831.02/26,021.20 = 13,717.64/x
  3. Step 3: Cross multiply
    18,831.02x = 26,021.20 × 13,717.64
  4. Step 4: Simplify right side
    18,831.02x = 356,949,484.73
  5. Step 5: Solve for x
    x = 356,949,484.73/18,831.02
  6. Step 6: Final answer
    x = 18,955.40

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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.