Home / 19,481.30-26,866.55-12,764.47

Finding the Fourth Proportional to 19,481.30, 26,866.55 and 12,764.47

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Solution

The fourth proportional to 19,481.30, 26,866.55 and 12,764.47 is: 17,603.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,481.30 : 26,866.55 = 12,764.47 : x
  2. Step 2: Convert to fraction form
    19,481.30/26,866.55 = 12,764.47/x
  3. Step 3: Cross multiply
    19,481.30x = 26,866.55 × 12,764.47
  4. Step 4: Simplify right side
    19,481.30x = 342,937,271.48
  5. Step 5: Solve for x
    x = 342,937,271.48/19,481.30
  6. Step 6: Final answer
    x = 17,603.41

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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.