Home / 10,739.88-14,811.12-7,156.85

Finding the Fourth Proportional to 10,739.88, 14,811.12 and 7,156.85

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Solution

The fourth proportional to 10,739.88, 14,811.12 and 7,156.85 is: 9,869.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,739.88 : 14,811.12 = 7,156.85 : x
  2. Step 2: Convert to fraction form
    10,739.88/14,811.12 = 7,156.85/x
  3. Step 3: Cross multiply
    10,739.88x = 14,811.12 × 7,156.85
  4. Step 4: Simplify right side
    10,739.88x = 106,000,890.12
  5. Step 5: Solve for x
    x = 106,000,890.12/10,739.88
  6. Step 6: Final answer
    x = 9,869.84

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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.