Home / 10,321.28-14,247-6,129.50

Finding the Fourth Proportional to 10,321.28, 14,247 and 6,129.50

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Solution

The fourth proportional to 10,321.28, 14,247 and 6,129.50 is: 8,460.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.28 : 14,247 = 6,129.50 : x
  2. Step 2: Convert to fraction form
    10,321.28/14,247 = 6,129.50/x
  3. Step 3: Cross multiply
    10,321.28x = 14,247 × 6,129.50
  4. Step 4: Simplify right side
    10,321.28x = 87,326,986.50
  5. Step 5: Solve for x
    x = 87,326,986.50/10,321.28
  6. Step 6: Final answer
    x = 8,460.87

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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.