Home / 11,156.95-15,396.75-6,121.08

Finding the Fourth Proportional to 11,156.95, 15,396.75 and 6,121.08

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Solution

The fourth proportional to 11,156.95, 15,396.75 and 6,121.08 is: 8,447.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.95 : 15,396.75 = 6,121.08 : x
  2. Step 2: Convert to fraction form
    11,156.95/15,396.75 = 6,121.08/x
  3. Step 3: Cross multiply
    11,156.95x = 15,396.75 × 6,121.08
  4. Step 4: Simplify right side
    11,156.95x = 94,244,669.36
  5. Step 5: Solve for x
    x = 94,244,669.36/11,156.95
  6. Step 6: Final answer
    x = 8,447.17

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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.