Home / 10,927.80-16,374.90-8,141.40

Finding the Fourth Proportional to 10,927.80, 16,374.90 and 8,141.40

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Solution

The fourth proportional to 10,927.80, 16,374.90 and 8,141.40 is: 12,199.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,927.80 : 16,374.90 = 8,141.40 : x
  2. Step 2: Convert to fraction form
    10,927.80/16,374.90 = 8,141.40/x
  3. Step 3: Cross multiply
    10,927.80x = 16,374.90 × 8,141.40
  4. Step 4: Simplify right side
    10,927.80x = 133,314,610.86
  5. Step 5: Solve for x
    x = 133,314,610.86/10,927.80
  6. Step 6: Final answer
    x = 12,199.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.