Home / 19,619.30-27,074.90-10,666.78

Finding the Fourth Proportional to 19,619.30, 27,074.90 and 10,666.78

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Solution

The fourth proportional to 19,619.30, 27,074.90 and 10,666.78 is: 14,720.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,619.30 : 27,074.90 = 10,666.78 : x
  2. Step 2: Convert to fraction form
    19,619.30/27,074.90 = 10,666.78/x
  3. Step 3: Cross multiply
    19,619.30x = 27,074.90 × 10,666.78
  4. Step 4: Simplify right side
    19,619.30x = 288,802,001.82
  5. Step 5: Solve for x
    x = 288,802,001.82/19,619.30
  6. Step 6: Final answer
    x = 14,720.30

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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.