Home / 14,118.92-19,484.22-7,831.28

Finding the Fourth Proportional to 14,118.92, 19,484.22 and 7,831.28

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Solution

The fourth proportional to 14,118.92, 19,484.22 and 7,831.28 is: 10,807.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.92 : 19,484.22 = 7,831.28 : x
  2. Step 2: Convert to fraction form
    14,118.92/19,484.22 = 7,831.28/x
  3. Step 3: Cross multiply
    14,118.92x = 19,484.22 × 7,831.28
  4. Step 4: Simplify right side
    14,118.92x = 152,586,382.40
  5. Step 5: Solve for x
    x = 152,586,382.40/14,118.92
  6. Step 6: Final answer
    x = 10,807.23

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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.