Home / 18,697.49-28,045.45-7,603.75

Finding the Fourth Proportional to 18,697.49, 28,045.45 and 7,603.75

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Solution

The fourth proportional to 18,697.49, 28,045.45 and 7,603.75 is: 11,405.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697.49 : 28,045.45 = 7,603.75 : x
  2. Step 2: Convert to fraction form
    18,697.49/28,045.45 = 7,603.75/x
  3. Step 3: Cross multiply
    18,697.49x = 28,045.45 × 7,603.75
  4. Step 4: Simplify right side
    18,697.49x = 213,250,590.44
  5. Step 5: Solve for x
    x = 213,250,590.44/18,697.49
  6. Step 6: Final answer
    x = 11,405.31

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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.