Home / 7,555.10-11,281.68-6,171.12

Finding the Fourth Proportional to 7,555.10, 11,281.68 and 6,171.12

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Solution

The fourth proportional to 7,555.10, 11,281.68 and 6,171.12 is: 9,215.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,555.10 : 11,281.68 = 6,171.12 : x
  2. Step 2: Convert to fraction form
    7,555.10/11,281.68 = 6,171.12/x
  3. Step 3: Cross multiply
    7,555.10x = 11,281.68 × 6,171.12
  4. Step 4: Simplify right side
    7,555.10x = 69,620,601.08
  5. Step 5: Solve for x
    x = 69,620,601.08/7,555.10
  6. Step 6: Final answer
    x = 9,215.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.