Home / 12,603.12-17,387.64-12,583.68

Finding the Fourth Proportional to 12,603.12, 17,387.64 and 12,583.68

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Solution

The fourth proportional to 12,603.12, 17,387.64 and 12,583.68 is: 17,360.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.12 : 17,387.64 = 12,583.68 : x
  2. Step 2: Convert to fraction form
    12,603.12/17,387.64 = 12,583.68/x
  3. Step 3: Cross multiply
    12,603.12x = 17,387.64 × 12,583.68
  4. Step 4: Simplify right side
    12,603.12x = 218,800,497.72
  5. Step 5: Solve for x
    x = 218,800,497.72/12,603.12
  6. Step 6: Final answer
    x = 17,360.82

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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.