Home / 7,626.56-11,443.68-5,430.08

Finding the Fourth Proportional to 7,626.56, 11,443.68 and 5,430.08

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Solution

The fourth proportional to 7,626.56, 11,443.68 and 5,430.08 is: 8,147.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,626.56 : 11,443.68 = 5,430.08 : x
  2. Step 2: Convert to fraction form
    7,626.56/11,443.68 = 5,430.08/x
  3. Step 3: Cross multiply
    7,626.56x = 11,443.68 × 5,430.08
  4. Step 4: Simplify right side
    7,626.56x = 62,140,097.89
  5. Step 5: Solve for x
    x = 62,140,097.89/7,626.56
  6. Step 6: Final answer
    x = 8,147.85

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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.