Home / 19,643.20-27,107.09-10,690.51

Finding the Fourth Proportional to 19,643.20, 27,107.09 and 10,690.51

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Solution

The fourth proportional to 19,643.20, 27,107.09 and 10,690.51 is: 14,752.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.20 : 27,107.09 = 10,690.51 : x
  2. Step 2: Convert to fraction form
    19,643.20/27,107.09 = 10,690.51/x
  3. Step 3: Cross multiply
    19,643.20x = 27,107.09 × 10,690.51
  4. Step 4: Simplify right side
    19,643.20x = 289,788,616.72
  5. Step 5: Solve for x
    x = 289,788,616.72/19,643.20
  6. Step 6: Final answer
    x = 14,752.62

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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.