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Finding the Fourth Proportional to 14,019.57, 19,334.57 and 13,949.78

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Solution

The fourth proportional to 14,019.57, 19,334.57 and 13,949.78 is: 19,238.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,019.57 : 19,334.57 = 13,949.78 : x
  2. Step 2: Convert to fraction form
    14,019.57/19,334.57 = 13,949.78/x
  3. Step 3: Cross multiply
    14,019.57x = 19,334.57 × 13,949.78
  4. Step 4: Simplify right side
    14,019.57x = 269,712,831.47
  5. Step 5: Solve for x
    x = 269,712,831.47/14,019.57
  6. Step 6: Final answer
    x = 19,238.31

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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.