Home / 13,348.64-18,419.75-7,682.29

Finding the Fourth Proportional to 13,348.64, 18,419.75 and 7,682.29

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Solution

The fourth proportional to 13,348.64, 18,419.75 and 7,682.29 is: 10,600.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.64 : 18,419.75 = 7,682.29 : x
  2. Step 2: Convert to fraction form
    13,348.64/18,419.75 = 7,682.29/x
  3. Step 3: Cross multiply
    13,348.64x = 18,419.75 × 7,682.29
  4. Step 4: Simplify right side
    13,348.64x = 141,505,848.79
  5. Step 5: Solve for x
    x = 141,505,848.79/13,348.64
  6. Step 6: Final answer
    x = 10,600.77

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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.