Home / 19,608.71-29,403.83-7,119.90

Finding the Fourth Proportional to 19,608.71, 29,403.83 and 7,119.90

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Solution

The fourth proportional to 19,608.71, 29,403.83 and 7,119.90 is: 10,676.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,608.71 : 29,403.83 = 7,119.90 : x
  2. Step 2: Convert to fraction form
    19,608.71/29,403.83 = 7,119.90/x
  3. Step 3: Cross multiply
    19,608.71x = 29,403.83 × 7,119.90
  4. Step 4: Simplify right side
    19,608.71x = 209,352,347.02
  5. Step 5: Solve for x
    x = 209,352,347.02/19,608.71
  6. Step 6: Final answer
    x = 10,676.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.