Home / 12,152.26-16,777.40-7,967.80

Finding the Fourth Proportional to 12,152.26, 16,777.40 and 7,967.80

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Solution

The fourth proportional to 12,152.26, 16,777.40 and 7,967.80 is: 11,000.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.26 : 16,777.40 = 7,967.80 : x
  2. Step 2: Convert to fraction form
    12,152.26/16,777.40 = 7,967.80/x
  3. Step 3: Cross multiply
    12,152.26x = 16,777.40 × 7,967.80
  4. Step 4: Simplify right side
    12,152.26x = 133,678,967.72
  5. Step 5: Solve for x
    x = 133,678,967.72/12,152.26
  6. Step 6: Final answer
    x = 11,000.34

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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.