Home / 13,638.87-18,823.46-10,112.13

Finding the Fourth Proportional to 13,638.87, 18,823.46 and 10,112.13

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Solution

The fourth proportional to 13,638.87, 18,823.46 and 10,112.13 is: 13,956.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,638.87 : 18,823.46 = 10,112.13 : x
  2. Step 2: Convert to fraction form
    13,638.87/18,823.46 = 10,112.13/x
  3. Step 3: Cross multiply
    13,638.87x = 18,823.46 × 10,112.13
  4. Step 4: Simplify right side
    13,638.87x = 190,345,224.01
  5. Step 5: Solve for x
    x = 190,345,224.01/13,638.87
  6. Step 6: Final answer
    x = 13,956.08

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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.