Home / 11,180.99-15,428.76-6,145.16

Finding the Fourth Proportional to 11,180.99, 15,428.76 and 6,145.16

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Solution

The fourth proportional to 11,180.99, 15,428.76 and 6,145.16 is: 8,479.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.99 : 15,428.76 = 6,145.16 : x
  2. Step 2: Convert to fraction form
    11,180.99/15,428.76 = 6,145.16/x
  3. Step 3: Cross multiply
    11,180.99x = 15,428.76 × 6,145.16
  4. Step 4: Simplify right side
    11,180.99x = 94,812,121.66
  5. Step 5: Solve for x
    x = 94,812,121.66/11,180.99
  6. Step 6: Final answer
    x = 8,479.76

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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.