Home / 10,313.28-14,234.40-6,120.72

Finding the Fourth Proportional to 10,313.28, 14,234.40 and 6,120.72

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Solution

The fourth proportional to 10,313.28, 14,234.40 and 6,120.72 is: 8,447.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,313.28 : 14,234.40 = 6,120.72 : x
  2. Step 2: Convert to fraction form
    10,313.28/14,234.40 = 6,120.72/x
  3. Step 3: Cross multiply
    10,313.28x = 14,234.40 × 6,120.72
  4. Step 4: Simplify right side
    10,313.28x = 87,124,776.77
  5. Step 5: Solve for x
    x = 87,124,776.77/10,313.28
  6. Step 6: Final answer
    x = 8,447.82

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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.