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Finding the Fourth Proportional to 14,369.64, 19,831.14 and 10,389.48

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Solution

The fourth proportional to 14,369.64, 19,831.14 and 10,389.48 is: 14,338.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,369.64 : 19,831.14 = 10,389.48 : x
  2. Step 2: Convert to fraction form
    14,369.64/19,831.14 = 10,389.48/x
  3. Step 3: Cross multiply
    14,369.64x = 19,831.14 × 10,389.48
  4. Step 4: Simplify right side
    14,369.64x = 206,035,232.41
  5. Step 5: Solve for x
    x = 206,035,232.41/14,369.64
  6. Step 6: Final answer
    x = 14,338.23

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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.