Home / 10,321.53-14,247.35-6,129.75

Finding the Fourth Proportional to 10,321.53, 14,247.35 and 6,129.75

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Solution

The fourth proportional to 10,321.53, 14,247.35 and 6,129.75 is: 8,461.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.53 : 14,247.35 = 6,129.75 : x
  2. Step 2: Convert to fraction form
    10,321.53/14,247.35 = 6,129.75/x
  3. Step 3: Cross multiply
    10,321.53x = 14,247.35 × 6,129.75
  4. Step 4: Simplify right side
    10,321.53x = 87,332,663.01
  5. Step 5: Solve for x
    x = 87,332,663.01/10,321.53
  6. Step 6: Final answer
    x = 8,461.21

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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.