Home / 10,831.04-14,946.72-6,115.04

Finding the Fourth Proportional to 10,831.04, 14,946.72 and 6,115.04

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Solution

The fourth proportional to 10,831.04, 14,946.72 and 6,115.04 is: 8,438.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,831.04 : 14,946.72 = 6,115.04 : x
  2. Step 2: Convert to fraction form
    10,831.04/14,946.72 = 6,115.04/x
  3. Step 3: Cross multiply
    10,831.04x = 14,946.72 × 6,115.04
  4. Step 4: Simplify right side
    10,831.04x = 91,399,790.67
  5. Step 5: Solve for x
    x = 91,399,790.67/10,831.04
  6. Step 6: Final answer
    x = 8,438.69

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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.