Home / 8,659.23-12,988.81-2,419.22

Finding the Fourth Proportional to 8,659.23, 12,988.81 and 2,419.22

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Solution

The fourth proportional to 8,659.23, 12,988.81 and 2,419.22 is: 3,628.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,659.23 : 12,988.81 = 2,419.22 : x
  2. Step 2: Convert to fraction form
    8,659.23/12,988.81 = 2,419.22/x
  3. Step 3: Cross multiply
    8,659.23x = 12,988.81 × 2,419.22
  4. Step 4: Simplify right side
    8,659.23x = 31,422,737.75
  5. Step 5: Solve for x
    x = 31,422,737.75/8,659.23
  6. Step 6: Final answer
    x = 3,628.81

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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.