Home / 11,176.02-15,410.12-7,137.36

Finding the Fourth Proportional to 11,176.02, 15,410.12 and 7,137.36

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Solution

The fourth proportional to 11,176.02, 15,410.12 and 7,137.36 is: 9,841.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,176.02 : 15,410.12 = 7,137.36 : x
  2. Step 2: Convert to fraction form
    11,176.02/15,410.12 = 7,137.36/x
  3. Step 3: Cross multiply
    11,176.02x = 15,410.12 × 7,137.36
  4. Step 4: Simplify right side
    11,176.02x = 109,987,538.40
  5. Step 5: Solve for x
    x = 109,987,538.40/11,176.02
  6. Step 6: Final answer
    x = 9,841.39

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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.