Home / 14,468.79-19,967.31-8,181.21

Finding the Fourth Proportional to 14,468.79, 19,967.31 and 8,181.21

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Solution

The fourth proportional to 14,468.79, 19,967.31 and 8,181.21 is: 11,290.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,468.79 : 19,967.31 = 8,181.21 : x
  2. Step 2: Convert to fraction form
    14,468.79/19,967.31 = 8,181.21/x
  3. Step 3: Cross multiply
    14,468.79x = 19,967.31 × 8,181.21
  4. Step 4: Simplify right side
    14,468.79x = 163,356,756.25
  5. Step 5: Solve for x
    x = 163,356,756.25/14,468.79
  6. Step 6: Final answer
    x = 11,290.28

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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.