Home / 19,203.70-26,505.75-12,830.62

Finding the Fourth Proportional to 19,203.70, 26,505.75 and 12,830.62

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Solution

The fourth proportional to 19,203.70, 26,505.75 and 12,830.62 is: 17,709.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,203.70 : 26,505.75 = 12,830.62 : x
  2. Step 2: Convert to fraction form
    19,203.70/26,505.75 = 12,830.62/x
  3. Step 3: Cross multiply
    19,203.70x = 26,505.75 × 12,830.62
  4. Step 4: Simplify right side
    19,203.70x = 340,085,206.07
  5. Step 5: Solve for x
    x = 340,085,206.07/19,203.70
  6. Step 6: Final answer
    x = 17,709.36

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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.