Home / 10,831.70-14,947.74-6,116.28

Finding the Fourth Proportional to 10,831.70, 14,947.74 and 6,116.28

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Solution

The fourth proportional to 10,831.70, 14,947.74 and 6,116.28 is: 8,440.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,831.70 : 14,947.74 = 6,116.28 : x
  2. Step 2: Convert to fraction form
    10,831.70/14,947.74 = 6,116.28/x
  3. Step 3: Cross multiply
    10,831.70x = 14,947.74 × 6,116.28
  4. Step 4: Simplify right side
    10,831.70x = 91,424,563.21
  5. Step 5: Solve for x
    x = 91,424,563.21/10,831.70
  6. Step 6: Final answer
    x = 8,440.47

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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.