Home / 9,205.79-12,703.50-5,228.18

Finding the Fourth Proportional to 9,205.79, 12,703.50 and 5,228.18

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Solution

The fourth proportional to 9,205.79, 12,703.50 and 5,228.18 is: 7,214.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,205.79 : 12,703.50 = 5,228.18 : x
  2. Step 2: Convert to fraction form
    9,205.79/12,703.50 = 5,228.18/x
  3. Step 3: Cross multiply
    9,205.79x = 12,703.50 × 5,228.18
  4. Step 4: Simplify right side
    9,205.79x = 66,416,168.75
  5. Step 5: Solve for x
    x = 66,416,168.75/9,205.79
  6. Step 6: Final answer
    x = 7,214.61

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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.