Home / 18,199.29-25,106.63-13,155.51

Finding the Fourth Proportional to 18,199.29, 25,106.63 and 13,155.51

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Solution

The fourth proportional to 18,199.29, 25,106.63 and 13,155.51 is: 18,148.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,199.29 : 25,106.63 = 13,155.51 : x
  2. Step 2: Convert to fraction form
    18,199.29/25,106.63 = 13,155.51/x
  3. Step 3: Cross multiply
    18,199.29x = 25,106.63 × 13,155.51
  4. Step 4: Simplify right side
    18,199.29x = 330,290,456.25
  5. Step 5: Solve for x
    x = 330,290,456.25/18,199.29
  6. Step 6: Final answer
    x = 18,148.54

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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.