Home / 18,642.07-25,725.67-10,144.36

Finding the Fourth Proportional to 18,642.07, 25,725.67 and 10,144.36

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Solution

The fourth proportional to 18,642.07, 25,725.67 and 10,144.36 is: 13,999.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,642.07 : 25,725.67 = 10,144.36 : x
  2. Step 2: Convert to fraction form
    18,642.07/25,725.67 = 10,144.36/x
  3. Step 3: Cross multiply
    18,642.07x = 25,725.67 × 10,144.36
  4. Step 4: Simplify right side
    18,642.07x = 260,970,457.72
  5. Step 5: Solve for x
    x = 260,970,457.72/18,642.07
  6. Step 6: Final answer
    x = 13,999.01

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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.