Home / 9,845.90-13,587-5,369.60

Finding the Fourth Proportional to 9,845.90, 13,587 and 5,369.60

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Solution

The fourth proportional to 9,845.90, 13,587 and 5,369.60 is: 7,409.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,845.90 : 13,587 = 5,369.60 : x
  2. Step 2: Convert to fraction form
    9,845.90/13,587 = 5,369.60/x
  3. Step 3: Cross multiply
    9,845.90x = 13,587 × 5,369.60
  4. Step 4: Simplify right side
    9,845.90x = 72,956,755.20
  5. Step 5: Solve for x
    x = 72,956,755.20/9,845.90
  6. Step 6: Final answer
    x = 7,409.86

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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.