Home / 10,912.02-15,057.69-6,131.70

Finding the Fourth Proportional to 10,912.02, 15,057.69 and 6,131.70

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Solution

The fourth proportional to 10,912.02, 15,057.69 and 6,131.70 is: 8,461.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.02 : 15,057.69 = 6,131.70 : x
  2. Step 2: Convert to fraction form
    10,912.02/15,057.69 = 6,131.70/x
  3. Step 3: Cross multiply
    10,912.02x = 15,057.69 × 6,131.70
  4. Step 4: Simplify right side
    10,912.02x = 92,329,237.77
  5. Step 5: Solve for x
    x = 92,329,237.77/10,912.02
  6. Step 6: Final answer
    x = 8,461.24

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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.