Home / 7,228.10-9,936.09-6,515.30

Finding the Fourth Proportional to 7,228.10, 9,936.09 and 6,515.30

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Solution

The fourth proportional to 7,228.10, 9,936.09 and 6,515.30 is: 8,956.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,228.10 : 9,936.09 = 6,515.30 : x
  2. Step 2: Convert to fraction form
    7,228.10/9,936.09 = 6,515.30/x
  3. Step 3: Cross multiply
    7,228.10x = 9,936.09 × 6,515.30
  4. Step 4: Simplify right side
    7,228.10x = 64,736,574.60
  5. Step 5: Solve for x
    x = 64,736,574.60/7,228.10
  6. Step 6: Final answer
    x = 8,956.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.