Home / 19,145.31-28,722.55-9,273.05

Finding the Fourth Proportional to 19,145.31, 28,722.55 and 9,273.05

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Solution

The fourth proportional to 19,145.31, 28,722.55 and 9,273.05 is: 13,911.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,145.31 : 28,722.55 = 9,273.05 : x
  2. Step 2: Convert to fraction form
    19,145.31/28,722.55 = 9,273.05/x
  3. Step 3: Cross multiply
    19,145.31x = 28,722.55 × 9,273.05
  4. Step 4: Simplify right side
    19,145.31x = 266,345,642.28
  5. Step 5: Solve for x
    x = 266,345,642.28/19,145.31
  6. Step 6: Final answer
    x = 13,911.80

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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.