Home / 19,511.37-26,928.18-12,802.68

Finding the Fourth Proportional to 19,511.37, 26,928.18 and 12,802.68

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Solution

The fourth proportional to 19,511.37, 26,928.18 and 12,802.68 is: 17,669.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,511.37 : 26,928.18 = 12,802.68 : x
  2. Step 2: Convert to fraction form
    19,511.37/26,928.18 = 12,802.68/x
  3. Step 3: Cross multiply
    19,511.37x = 26,928.18 × 12,802.68
  4. Step 4: Simplify right side
    19,511.37x = 344,752,871.52
  5. Step 5: Solve for x
    x = 344,752,871.52/19,511.37
  6. Step 6: Final answer
    x = 17,669.33

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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.