Home / 11,173.52-15,418.55-6,458.10

Finding the Fourth Proportional to 11,173.52, 15,418.55 and 6,458.10

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Solution

The fourth proportional to 11,173.52, 15,418.55 and 6,458.10 is: 8,911.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.52 : 15,418.55 = 6,458.10 : x
  2. Step 2: Convert to fraction form
    11,173.52/15,418.55 = 6,458.10/x
  3. Step 3: Cross multiply
    11,173.52x = 15,418.55 × 6,458.10
  4. Step 4: Simplify right side
    11,173.52x = 99,574,505.46
  5. Step 5: Solve for x
    x = 99,574,505.46/11,173.52
  6. Step 6: Final answer
    x = 8,911.65

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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.