Home / 19,575.78-27,006.73-11,190.50

Finding the Fourth Proportional to 19,575.78, 27,006.73 and 11,190.50

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Solution

The fourth proportional to 19,575.78, 27,006.73 and 11,190.50 is: 15,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,575.78 : 27,006.73 = 11,190.50 : x
  2. Step 2: Convert to fraction form
    19,575.78/27,006.73 = 11,190.50/x
  3. Step 3: Cross multiply
    19,575.78x = 27,006.73 × 11,190.50
  4. Step 4: Simplify right side
    19,575.78x = 302,218,812.07
  5. Step 5: Solve for x
    x = 302,218,812.07/19,575.78
  6. Step 6: Final answer
    x = 15,438.40

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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.