Home / 7,603.59-11,397.76-3,155.21

Finding the Fourth Proportional to 7,603.59, 11,397.76 and 3,155.21

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Solution

The fourth proportional to 7,603.59, 11,397.76 and 3,155.21 is: 4,729.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,603.59 : 11,397.76 = 3,155.21 : x
  2. Step 2: Convert to fraction form
    7,603.59/11,397.76 = 3,155.21/x
  3. Step 3: Cross multiply
    7,603.59x = 11,397.76 × 3,155.21
  4. Step 4: Simplify right side
    7,603.59x = 35,962,261.45
  5. Step 5: Solve for x
    x = 35,962,261.45/7,603.59
  6. Step 6: Final answer
    x = 4,729.64

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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.