Home / 19,012.78-26,238.50-10,629.28

Finding the Fourth Proportional to 19,012.78, 26,238.50 and 10,629.28

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Solution

The fourth proportional to 19,012.78, 26,238.50 and 10,629.28 is: 14,668.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,012.78 : 26,238.50 = 10,629.28 : x
  2. Step 2: Convert to fraction form
    19,012.78/26,238.50 = 10,629.28/x
  3. Step 3: Cross multiply
    19,012.78x = 26,238.50 × 10,629.28
  4. Step 4: Simplify right side
    19,012.78x = 278,896,363.28
  5. Step 5: Solve for x
    x = 278,896,363.28/19,012.78
  6. Step 6: Final answer
    x = 14,668.89

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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.