Home / 12,299.40-18,456.12-6,681.24

Finding the Fourth Proportional to 12,299.40, 18,456.12 and 6,681.24

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Solution

The fourth proportional to 12,299.40, 18,456.12 and 6,681.24 is: 10,025.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299.40 : 18,456.12 = 6,681.24 : x
  2. Step 2: Convert to fraction form
    12,299.40/18,456.12 = 6,681.24/x
  3. Step 3: Cross multiply
    12,299.40x = 18,456.12 × 6,681.24
  4. Step 4: Simplify right side
    12,299.40x = 123,309,767.19
  5. Step 5: Solve for x
    x = 123,309,767.19/12,299.40
  6. Step 6: Final answer
    x = 10,025.67

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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.