Home / 19,210.92-26,511.78-10,828.20

Finding the Fourth Proportional to 19,210.92, 26,511.78 and 10,828.20

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Solution

The fourth proportional to 19,210.92, 26,511.78 and 10,828.20 is: 14,943.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.92 : 26,511.78 = 10,828.20 : x
  2. Step 2: Convert to fraction form
    19,210.92/26,511.78 = 10,828.20/x
  3. Step 3: Cross multiply
    19,210.92x = 26,511.78 × 10,828.20
  4. Step 4: Simplify right side
    19,210.92x = 287,074,856.20
  5. Step 5: Solve for x
    x = 287,074,856.20/19,210.92
  6. Step 6: Final answer
    x = 14,943.32

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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.