Home / 8,715.99-12,028.03-4,939.87

Finding the Fourth Proportional to 8,715.99, 12,028.03 and 4,939.87

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Solution

The fourth proportional to 8,715.99, 12,028.03 and 4,939.87 is: 6,817.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.99 : 12,028.03 = 4,939.87 : x
  2. Step 2: Convert to fraction form
    8,715.99/12,028.03 = 4,939.87/x
  3. Step 3: Cross multiply
    8,715.99x = 12,028.03 × 4,939.87
  4. Step 4: Simplify right side
    8,715.99x = 59,416,884.69
  5. Step 5: Solve for x
    x = 59,416,884.69/8,715.99
  6. Step 6: Final answer
    x = 6,817.00

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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.