Home / 14,241.89-19,621.64-9,930.87

Finding the Fourth Proportional to 14,241.89, 19,621.64 and 9,930.87

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Solution

The fourth proportional to 14,241.89, 19,621.64 and 9,930.87 is: 13,682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,241.89 : 19,621.64 = 9,930.87 : x
  2. Step 2: Convert to fraction form
    14,241.89/19,621.64 = 9,930.87/x
  3. Step 3: Cross multiply
    14,241.89x = 19,621.64 × 9,930.87
  4. Step 4: Simplify right side
    14,241.89x = 194,859,980.85
  5. Step 5: Solve for x
    x = 194,859,980.85/14,241.89
  6. Step 6: Final answer
    x = 13,682.17

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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.