Home / 13,142.19-19,705.99-4,372.32

Finding the Fourth Proportional to 13,142.19, 19,705.99 and 4,372.32

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Solution

The fourth proportional to 13,142.19, 19,705.99 and 4,372.32 is: 6,556.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,142.19 : 19,705.99 = 4,372.32 : x
  2. Step 2: Convert to fraction form
    13,142.19/19,705.99 = 4,372.32/x
  3. Step 3: Cross multiply
    13,142.19x = 19,705.99 × 4,372.32
  4. Step 4: Simplify right side
    13,142.19x = 86,160,773.81
  5. Step 5: Solve for x
    x = 86,160,773.81/13,142.19
  6. Step 6: Final answer
    x = 6,556.05

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1.5x scale

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.