Home / 10,790.50-16,186.40-3,395.20

Finding the Fourth Proportional to 10,790.50, 16,186.40 and 3,395.20

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Solution

The fourth proportional to 10,790.50, 16,186.40 and 3,395.20 is: 5,093.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,790.50 : 16,186.40 = 3,395.20 : x
  2. Step 2: Convert to fraction form
    10,790.50/16,186.40 = 3,395.20/x
  3. Step 3: Cross multiply
    10,790.50x = 16,186.40 × 3,395.20
  4. Step 4: Simplify right side
    10,790.50x = 54,956,065.28
  5. Step 5: Solve for x
    x = 54,956,065.28/10,790.50
  6. Step 6: Final answer
    x = 5,093.00

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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.