Home / 19,212.10-26,512.90-10,828.60

Finding the Fourth Proportional to 19,212.10, 26,512.90 and 10,828.60

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Solution

The fourth proportional to 19,212.10, 26,512.90 and 10,828.60 is: 14,943.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.10 : 26,512.90 = 10,828.60 : x
  2. Step 2: Convert to fraction form
    19,212.10/26,512.90 = 10,828.60/x
  3. Step 3: Cross multiply
    19,212.10x = 26,512.90 × 10,828.60
  4. Step 4: Simplify right side
    19,212.10x = 287,097,402.23
  5. Step 5: Solve for x
    x = 287,097,402.23/19,212.10
  6. Step 6: Final answer
    x = 14,943.58

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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.