Home / 10,914.16-16,381.40-7,797.20

Finding the Fourth Proportional to 10,914.16, 16,381.40 and 7,797.20

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Solution

The fourth proportional to 10,914.16, 16,381.40 and 7,797.20 is: 11,703.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,914.16 : 16,381.40 = 7,797.20 : x
  2. Step 2: Convert to fraction form
    10,914.16/16,381.40 = 7,797.20/x
  3. Step 3: Cross multiply
    10,914.16x = 16,381.40 × 7,797.20
  4. Step 4: Simplify right side
    10,914.16x = 127,729,052.08
  5. Step 5: Solve for x
    x = 127,729,052.08/10,914.16
  6. Step 6: Final answer
    x = 11,703.06

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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.