Home / 14,119-19,484.31-7,831.39

Finding the Fourth Proportional to 14,119, 19,484.31 and 7,831.39

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Solution

The fourth proportional to 14,119, 19,484.31 and 7,831.39 is: 10,807.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119 : 19,484.31 = 7,831.39 : x
  2. Step 2: Convert to fraction form
    14,119/19,484.31 = 7,831.39/x
  3. Step 3: Cross multiply
    14,119x = 19,484.31 × 7,831.39
  4. Step 4: Simplify right side
    14,119x = 152,589,230.49
  5. Step 5: Solve for x
    x = 152,589,230.49/14,119
  6. Step 6: Final answer
    x = 10,807.37

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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.