Home / 18,449.54-25,449.00-13,146.07

Finding the Fourth Proportional to 18,449.54, 25,449.00 and 13,146.07

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Solution

The fourth proportional to 18,449.54, 25,449.00 and 13,146.07 is: 18,133.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,449.54 : 25,449.00 = 13,146.07 : x
  2. Step 2: Convert to fraction form
    18,449.54/25,449.00 = 13,146.07/x
  3. Step 3: Cross multiply
    18,449.54x = 25,449.00 × 13,146.07
  4. Step 4: Simplify right side
    18,449.54x = 334,554,222.51
  5. Step 5: Solve for x
    x = 334,554,222.51/18,449.54
  6. Step 6: Final answer
    x = 18,133.47

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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.