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Finding the Fourth Proportional to 9,875, 13,627.32 and 5,897

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Solution

The fourth proportional to 9,875, 13,627.32 and 5,897 is: 8,137.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,875 : 13,627.32 = 5,897 : x
  2. Step 2: Convert to fraction form
    9,875/13,627.32 = 5,897/x
  3. Step 3: Cross multiply
    9,875x = 13,627.32 × 5,897
  4. Step 4: Simplify right side
    9,875x = 80,360,306.04
  5. Step 5: Solve for x
    x = 80,360,306.04/9,875
  6. Step 6: Final answer
    x = 8,137.75

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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.