Home / 12,152.25-16,777.40-7,967.79

Finding the Fourth Proportional to 12,152.25, 16,777.40 and 7,967.79

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Solution

The fourth proportional to 12,152.25, 16,777.40 and 7,967.79 is: 11,000.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.25 : 16,777.40 = 7,967.79 : x
  2. Step 2: Convert to fraction form
    12,152.25/16,777.40 = 7,967.79/x
  3. Step 3: Cross multiply
    12,152.25x = 16,777.40 × 7,967.79
  4. Step 4: Simplify right side
    12,152.25x = 133,678,760.11
  5. Step 5: Solve for x
    x = 133,678,760.11/12,152.25
  6. Step 6: Final answer
    x = 11,000.33

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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.