Home / 10,313.92-14,231.36-6,123.20

Finding the Fourth Proportional to 10,313.92, 14,231.36 and 6,123.20

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Solution

The fourth proportional to 10,313.92, 14,231.36 and 6,123.20 is: 8,448.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,313.92 : 14,231.36 = 6,123.20 : x
  2. Step 2: Convert to fraction form
    10,313.92/14,231.36 = 6,123.20/x
  3. Step 3: Cross multiply
    10,313.92x = 14,231.36 × 6,123.20
  4. Step 4: Simplify right side
    10,313.92x = 87,141,463.55
  5. Step 5: Solve for x
    x = 87,141,463.55/10,313.92
  6. Step 6: Final answer
    x = 8,448.92

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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.