Home / 13,426.75-18,529.56-7,458.07

Finding the Fourth Proportional to 13,426.75, 18,529.56 and 7,458.07

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Solution

The fourth proportional to 13,426.75, 18,529.56 and 7,458.07 is: 10,292.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.75 : 18,529.56 = 7,458.07 : x
  2. Step 2: Convert to fraction form
    13,426.75/18,529.56 = 7,458.07/x
  3. Step 3: Cross multiply
    13,426.75x = 18,529.56 × 7,458.07
  4. Step 4: Simplify right side
    13,426.75x = 138,194,755.55
  5. Step 5: Solve for x
    x = 138,194,755.55/13,426.75
  6. Step 6: Final answer
    x = 10,292.49

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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.