Home / 19,643.15-27,107.82-10,690.67

Finding the Fourth Proportional to 19,643.15, 27,107.82 and 10,690.67

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Solution

The fourth proportional to 19,643.15, 27,107.82 and 10,690.67 is: 14,753.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.15 : 27,107.82 = 10,690.67 : x
  2. Step 2: Convert to fraction form
    19,643.15/27,107.82 = 10,690.67/x
  3. Step 3: Cross multiply
    19,643.15x = 27,107.82 × 10,690.67
  4. Step 4: Simplify right side
    19,643.15x = 289,800,622.50
  5. Step 5: Solve for x
    x = 289,800,622.50/19,643.15
  6. Step 6: Final answer
    x = 14,753.27

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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.