Home / 10,831.88-14,904.60-8,312.96

Finding the Fourth Proportional to 10,831.88, 14,904.60 and 8,312.96

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Solution

The fourth proportional to 10,831.88, 14,904.60 and 8,312.96 is: 11,438.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,831.88 : 14,904.60 = 8,312.96 : x
  2. Step 2: Convert to fraction form
    10,831.88/14,904.60 = 8,312.96/x
  3. Step 3: Cross multiply
    10,831.88x = 14,904.60 × 8,312.96
  4. Step 4: Simplify right side
    10,831.88x = 123,901,343.62
  5. Step 5: Solve for x
    x = 123,901,343.62/10,831.88
  6. Step 6: Final answer
    x = 11,438.58

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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.