Home / 13,054.79-18,015.35-7,389.44

Finding the Fourth Proportional to 13,054.79, 18,015.35 and 7,389.44

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Solution

The fourth proportional to 13,054.79, 18,015.35 and 7,389.44 is: 10,197.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.79 : 18,015.35 = 7,389.44 : x
  2. Step 2: Convert to fraction form
    13,054.79/18,015.35 = 7,389.44/x
  3. Step 3: Cross multiply
    13,054.79x = 18,015.35 × 7,389.44
  4. Step 4: Simplify right side
    13,054.79x = 133,123,288.44
  5. Step 5: Solve for x
    x = 133,123,288.44/13,054.79
  6. Step 6: Final answer
    x = 10,197.27

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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.