Home / 11,172.30-15,417.17-6,137.20

Finding the Fourth Proportional to 11,172.30, 15,417.17 and 6,137.20

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Solution

The fourth proportional to 11,172.30, 15,417.17 and 6,137.20 is: 8,469.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.30 : 15,417.17 = 6,137.20 : x
  2. Step 2: Convert to fraction form
    11,172.30/15,417.17 = 6,137.20/x
  3. Step 3: Cross multiply
    11,172.30x = 15,417.17 × 6,137.20
  4. Step 4: Simplify right side
    11,172.30x = 94,618,267.32
  5. Step 5: Solve for x
    x = 94,618,267.32/11,172.30
  6. Step 6: Final answer
    x = 8,469.01

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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.