Home / 10,313.37-15,491.39-8,341.20

Finding the Fourth Proportional to 10,313.37, 15,491.39 and 8,341.20

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Solution

The fourth proportional to 10,313.37, 15,491.39 and 8,341.20 is: 12,529.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,313.37 : 15,491.39 = 8,341.20 : x
  2. Step 2: Convert to fraction form
    10,313.37/15,491.39 = 8,341.20/x
  3. Step 3: Cross multiply
    10,313.37x = 15,491.39 × 8,341.20
  4. Step 4: Simplify right side
    10,313.37x = 129,216,740.56
  5. Step 5: Solve for x
    x = 129,216,740.56/10,313.37
  6. Step 6: Final answer
    x = 12,529.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.