Home / 9,319.08-12,859.74-5,781

Finding the Fourth Proportional to 9,319.08, 12,859.74 and 5,781

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Solution

The fourth proportional to 9,319.08, 12,859.74 and 5,781 is: 7,977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.08 : 12,859.74 = 5,781 : x
  2. Step 2: Convert to fraction form
    9,319.08/12,859.74 = 5,781/x
  3. Step 3: Cross multiply
    9,319.08x = 12,859.74 × 5,781
  4. Step 4: Simplify right side
    9,319.08x = 74,342,156.94
  5. Step 5: Solve for x
    x = 74,342,156.94/9,319.08
  6. Step 6: Final answer
    x = 7,977.41

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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.