Home / 12,968.55-17,895.87-7,663.86

Finding the Fourth Proportional to 12,968.55, 17,895.87 and 7,663.86

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Solution

The fourth proportional to 12,968.55, 17,895.87 and 7,663.86 is: 10,575.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.55 : 17,895.87 = 7,663.86 : x
  2. Step 2: Convert to fraction form
    12,968.55/17,895.87 = 7,663.86/x
  3. Step 3: Cross multiply
    12,968.55x = 17,895.87 × 7,663.86
  4. Step 4: Simplify right side
    12,968.55x = 137,151,442.26
  5. Step 5: Solve for x
    x = 137,151,442.26/12,968.55
  6. Step 6: Final answer
    x = 10,575.70

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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.