Home / 13,369.30-18,449.02-7,400.54

Finding the Fourth Proportional to 13,369.30, 18,449.02 and 7,400.54

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Solution

The fourth proportional to 13,369.30, 18,449.02 and 7,400.54 is: 10,212.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.30 : 18,449.02 = 7,400.54 : x
  2. Step 2: Convert to fraction form
    13,369.30/18,449.02 = 7,400.54/x
  3. Step 3: Cross multiply
    13,369.30x = 18,449.02 × 7,400.54
  4. Step 4: Simplify right side
    13,369.30x = 136,532,710.47
  5. Step 5: Solve for x
    x = 136,532,710.47/13,369.30
  6. Step 6: Final answer
    x = 10,212.41

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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.