Home / 19,391.26-26,758.45-10,890.67

Finding the Fourth Proportional to 19,391.26, 26,758.45 and 10,890.67

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Solution

The fourth proportional to 19,391.26, 26,758.45 and 10,890.67 is: 15,028.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,391.26 : 26,758.45 = 10,890.67 : x
  2. Step 2: Convert to fraction form
    19,391.26/26,758.45 = 10,890.67/x
  3. Step 3: Cross multiply
    19,391.26x = 26,758.45 × 10,890.67
  4. Step 4: Simplify right side
    19,391.26x = 291,417,448.66
  5. Step 5: Solve for x
    x = 291,417,448.66/19,391.26
  6. Step 6: Final answer
    x = 15,028.29

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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.