Home / 9,207.55-12,706.42-5,015.80

Finding the Fourth Proportional to 9,207.55, 12,706.42 and 5,015.80

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Solution

The fourth proportional to 9,207.55, 12,706.42 and 5,015.80 is: 6,921.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,207.55 : 12,706.42 = 5,015.80 : x
  2. Step 2: Convert to fraction form
    9,207.55/12,706.42 = 5,015.80/x
  3. Step 3: Cross multiply
    9,207.55x = 12,706.42 × 5,015.80
  4. Step 4: Simplify right side
    9,207.55x = 63,732,836.36
  5. Step 5: Solve for x
    x = 63,732,836.36/9,207.55
  6. Step 6: Final answer
    x = 6,921.80

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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.