Home / 10,319.78-14,240.94-5,603.96

Finding the Fourth Proportional to 10,319.78, 14,240.94 and 5,603.96

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Solution

The fourth proportional to 10,319.78, 14,240.94 and 5,603.96 is: 7,733.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,319.78 : 14,240.94 = 5,603.96 : x
  2. Step 2: Convert to fraction form
    10,319.78/14,240.94 = 5,603.96/x
  3. Step 3: Cross multiply
    10,319.78x = 14,240.94 × 5,603.96
  4. Step 4: Simplify right side
    10,319.78x = 79,805,658.12
  5. Step 5: Solve for x
    x = 79,805,658.12/10,319.78
  6. Step 6: Final answer
    x = 7,733.27

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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.