Home / 19,647.78-27,117.45-12,573.96

Finding the Fourth Proportional to 19,647.78, 27,117.45 and 12,573.96

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Solution

The fourth proportional to 19,647.78, 27,117.45 and 12,573.96 is: 17,354.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,647.78 : 27,117.45 = 12,573.96 : x
  2. Step 2: Convert to fraction form
    19,647.78/27,117.45 = 12,573.96/x
  3. Step 3: Cross multiply
    19,647.78x = 27,117.45 × 12,573.96
  4. Step 4: Simplify right side
    19,647.78x = 340,973,731.60
  5. Step 5: Solve for x
    x = 340,973,731.60/19,647.78
  6. Step 6: Final answer
    x = 17,354.31

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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.