Home / 11,156.63-15,396.35-6,121.10

Finding the Fourth Proportional to 11,156.63, 15,396.35 and 6,121.10

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Solution

The fourth proportional to 11,156.63, 15,396.35 and 6,121.10 is: 8,447.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.63 : 15,396.35 = 6,121.10 : x
  2. Step 2: Convert to fraction form
    11,156.63/15,396.35 = 6,121.10/x
  3. Step 3: Cross multiply
    11,156.63x = 15,396.35 × 6,121.10
  4. Step 4: Simplify right side
    11,156.63x = 94,242,490.40
  5. Step 5: Solve for x
    x = 94,242,490.40/11,156.63
  6. Step 6: Final answer
    x = 8,447.22

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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.