Home / 11,139.51-16,704.04-6,460.84

Finding the Fourth Proportional to 11,139.51, 16,704.04 and 6,460.84

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Solution

The fourth proportional to 11,139.51, 16,704.04 and 6,460.84 is: 9,688.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.51 : 16,704.04 = 6,460.84 : x
  2. Step 2: Convert to fraction form
    11,139.51/16,704.04 = 6,460.84/x
  3. Step 3: Cross multiply
    11,139.51x = 16,704.04 × 6,460.84
  4. Step 4: Simplify right side
    11,139.51x = 107,922,129.79
  5. Step 5: Solve for x
    x = 107,922,129.79/11,139.51
  6. Step 6: Final answer
    x = 9,688.23

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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.