Home / 12,826.70-19,246.71-9,705.77

Finding the Fourth Proportional to 12,826.70, 19,246.71 and 9,705.77

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Solution

The fourth proportional to 12,826.70, 19,246.71 and 9,705.77 is: 14,563.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,826.70 : 19,246.71 = 9,705.77 : x
  2. Step 2: Convert to fraction form
    12,826.70/19,246.71 = 9,705.77/x
  3. Step 3: Cross multiply
    12,826.70x = 19,246.71 × 9,705.77
  4. Step 4: Simplify right side
    12,826.70x = 186,804,091.99
  5. Step 5: Solve for x
    x = 186,804,091.99/12,826.70
  6. Step 6: Final answer
    x = 14,563.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.