Home / 13,371.24-18,449.58-7,402.50

Finding the Fourth Proportional to 13,371.24, 18,449.58 and 7,402.50

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Solution

The fourth proportional to 13,371.24, 18,449.58 and 7,402.50 is: 10,213.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.24 : 18,449.58 = 7,402.50 : x
  2. Step 2: Convert to fraction form
    13,371.24/18,449.58 = 7,402.50/x
  3. Step 3: Cross multiply
    13,371.24x = 18,449.58 × 7,402.50
  4. Step 4: Simplify right side
    13,371.24x = 136,573,015.95
  5. Step 5: Solve for x
    x = 136,573,015.95/13,371.24
  6. Step 6: Final answer
    x = 10,213.94

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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.