Home / 13,449.63-18,560.94-7,400.13

Finding the Fourth Proportional to 13,449.63, 18,560.94 and 7,400.13

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Solution

The fourth proportional to 13,449.63, 18,560.94 and 7,400.13 is: 10,212.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.63 : 18,560.94 = 7,400.13 : x
  2. Step 2: Convert to fraction form
    13,449.63/18,560.94 = 7,400.13/x
  3. Step 3: Cross multiply
    13,449.63x = 18,560.94 × 7,400.13
  4. Step 4: Simplify right side
    13,449.63x = 137,353,368.92
  5. Step 5: Solve for x
    x = 137,353,368.92/13,449.63
  6. Step 6: Final answer
    x = 10,212.43

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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.