Home / 18,715.24-25,826.94-10,331.68

Finding the Fourth Proportional to 18,715.24, 25,826.94 and 10,331.68

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Solution

The fourth proportional to 18,715.24, 25,826.94 and 10,331.68 is: 14,257.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.24 : 25,826.94 = 10,331.68 : x
  2. Step 2: Convert to fraction form
    18,715.24/25,826.94 = 10,331.68/x
  3. Step 3: Cross multiply
    18,715.24x = 25,826.94 × 10,331.68
  4. Step 4: Simplify right side
    18,715.24x = 266,835,679.46
  5. Step 5: Solve for x
    x = 266,835,679.46/18,715.24
  6. Step 6: Final answer
    x = 14,257.67

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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.