Home / 6,686.68-9,211.53-5,624.47

Finding the Fourth Proportional to 6,686.68, 9,211.53 and 5,624.47

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Solution

The fourth proportional to 6,686.68, 9,211.53 and 5,624.47 is: 7,748.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.68 : 9,211.53 = 5,624.47 : x
  2. Step 2: Convert to fraction form
    6,686.68/9,211.53 = 5,624.47/x
  3. Step 3: Cross multiply
    6,686.68x = 9,211.53 × 5,624.47
  4. Step 4: Simplify right side
    6,686.68x = 51,809,974.14
  5. Step 5: Solve for x
    x = 51,809,974.14/6,686.68
  6. Step 6: Final answer
    x = 7,748.24

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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.