Home / 13,919.06-19,211.38-10,888.18

Finding the Fourth Proportional to 13,919.06, 19,211.38 and 10,888.18

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Solution

The fourth proportional to 13,919.06, 19,211.38 and 10,888.18 is: 15,028.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.06 : 19,211.38 = 10,888.18 : x
  2. Step 2: Convert to fraction form
    13,919.06/19,211.38 = 10,888.18/x
  3. Step 3: Cross multiply
    13,919.06x = 19,211.38 × 10,888.18
  4. Step 4: Simplify right side
    13,919.06x = 209,176,888.24
  5. Step 5: Solve for x
    x = 209,176,888.24/13,919.06
  6. Step 6: Final answer
    x = 15,028.09

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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.