Home / 13,730.32-20,588.10-4,367.80

Finding the Fourth Proportional to 13,730.32, 20,588.10 and 4,367.80

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Solution

The fourth proportional to 13,730.32, 20,588.10 and 4,367.80 is: 6,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.32 : 20,588.10 = 4,367.80 : x
  2. Step 2: Convert to fraction form
    13,730.32/20,588.10 = 4,367.80/x
  3. Step 3: Cross multiply
    13,730.32x = 20,588.10 × 4,367.80
  4. Step 4: Simplify right side
    13,730.32x = 89,924,703.18
  5. Step 5: Solve for x
    x = 89,924,703.18/13,730.32
  6. Step 6: Final answer
    x = 6,549.35

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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.