Home / 11,158.55-15,396.08-6,442.82

Finding the Fourth Proportional to 11,158.55, 15,396.08 and 6,442.82

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Solution

The fourth proportional to 11,158.55, 15,396.08 and 6,442.82 is: 8,889.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,158.55 : 15,396.08 = 6,442.82 : x
  2. Step 2: Convert to fraction form
    11,158.55/15,396.08 = 6,442.82/x
  3. Step 3: Cross multiply
    11,158.55x = 15,396.08 × 6,442.82
  4. Step 4: Simplify right side
    11,158.55x = 99,194,062.95
  5. Step 5: Solve for x
    x = 99,194,062.95/11,158.55
  6. Step 6: Final answer
    x = 8,889.52

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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.