Home / 12,303.35-18,427.28-5,715.67

Finding the Fourth Proportional to 12,303.35, 18,427.28 and 5,715.67

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Solution

The fourth proportional to 12,303.35, 18,427.28 and 5,715.67 is: 8,560.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.35 : 18,427.28 = 5,715.67 : x
  2. Step 2: Convert to fraction form
    12,303.35/18,427.28 = 5,715.67/x
  3. Step 3: Cross multiply
    12,303.35x = 18,427.28 × 5,715.67
  4. Step 4: Simplify right side
    12,303.35x = 105,324,251.48
  5. Step 5: Solve for x
    x = 105,324,251.48/12,303.35
  6. Step 6: Final answer
    x = 8,560.62

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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.