Home / 19,590.49-27,021.48-12,513.79

Finding the Fourth Proportional to 19,590.49, 27,021.48 and 12,513.79

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Solution

The fourth proportional to 19,590.49, 27,021.48 and 12,513.79 is: 17,260.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,590.49 : 27,021.48 = 12,513.79 : x
  2. Step 2: Convert to fraction form
    19,590.49/27,021.48 = 12,513.79/x
  3. Step 3: Cross multiply
    19,590.49x = 27,021.48 × 12,513.79
  4. Step 4: Simplify right side
    19,590.49x = 338,141,126.21
  5. Step 5: Solve for x
    x = 338,141,126.21/19,590.49
  6. Step 6: Final answer
    x = 17,260.47

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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.