Home / 9,840.15-13,579.41-5,363.90

Finding the Fourth Proportional to 9,840.15, 13,579.41 and 5,363.90

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Solution

The fourth proportional to 9,840.15, 13,579.41 and 5,363.90 is: 7,402.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,840.15 : 13,579.41 = 5,363.90 : x
  2. Step 2: Convert to fraction form
    9,840.15/13,579.41 = 5,363.90/x
  3. Step 3: Cross multiply
    9,840.15x = 13,579.41 × 5,363.90
  4. Step 4: Simplify right side
    9,840.15x = 72,838,676.82
  5. Step 5: Solve for x
    x = 72,838,676.82/9,840.15
  6. Step 6: Final answer
    x = 7,402.19

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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.