Home / 12,403.62-18,603.81-5,476.50

Finding the Fourth Proportional to 12,403.62, 18,603.81 and 5,476.50

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Solution

The fourth proportional to 12,403.62, 18,603.81 and 5,476.50 is: 8,214.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.62 : 18,603.81 = 5,476.50 : x
  2. Step 2: Convert to fraction form
    12,403.62/18,603.81 = 5,476.50/x
  3. Step 3: Cross multiply
    12,403.62x = 18,603.81 × 5,476.50
  4. Step 4: Simplify right side
    12,403.62x = 101,883,765.47
  5. Step 5: Solve for x
    x = 101,883,765.47/12,403.62
  6. Step 6: Final answer
    x = 8,214.03

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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.