Home / 14,184.64-19,664.08-13,435.20

Finding the Fourth Proportional to 14,184.64, 19,664.08 and 13,435.20

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Solution

The fourth proportional to 14,184.64, 19,664.08 and 13,435.20 is: 18,625.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,184.64 : 19,664.08 = 13,435.20 : x
  2. Step 2: Convert to fraction form
    14,184.64/19,664.08 = 13,435.20/x
  3. Step 3: Cross multiply
    14,184.64x = 19,664.08 × 13,435.20
  4. Step 4: Simplify right side
    14,184.64x = 264,190,847.62
  5. Step 5: Solve for x
    x = 264,190,847.62/14,184.64
  6. Step 6: Final answer
    x = 18,625.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.