Home / 13,665.16-20,498.47-4,305.90

Finding the Fourth Proportional to 13,665.16, 20,498.47 and 4,305.90

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Solution

The fourth proportional to 13,665.16, 20,498.47 and 4,305.90 is: 6,459.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665.16 : 20,498.47 = 4,305.90 : x
  2. Step 2: Convert to fraction form
    13,665.16/20,498.47 = 4,305.90/x
  3. Step 3: Cross multiply
    13,665.16x = 20,498.47 × 4,305.90
  4. Step 4: Simplify right side
    13,665.16x = 88,264,340.44
  5. Step 5: Solve for x
    x = 88,264,340.44/13,665.16
  6. Step 6: Final answer
    x = 6,459.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.