Home / 9,140.59-12,615.07-5,555.73

Finding the Fourth Proportional to 9,140.59, 12,615.07 and 5,555.73

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Solution

The fourth proportional to 9,140.59, 12,615.07 and 5,555.73 is: 7,667.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.59 : 12,615.07 = 5,555.73 : x
  2. Step 2: Convert to fraction form
    9,140.59/12,615.07 = 5,555.73/x
  3. Step 3: Cross multiply
    9,140.59x = 12,615.07 × 5,555.73
  4. Step 4: Simplify right side
    9,140.59x = 70,085,922.85
  5. Step 5: Solve for x
    x = 70,085,922.85/9,140.59
  6. Step 6: Final answer
    x = 7,667.55

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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.