Home / 19,815.72-29,699.46-9,271.56

Finding the Fourth Proportional to 19,815.72, 29,699.46 and 9,271.56

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Solution

The fourth proportional to 19,815.72, 29,699.46 and 9,271.56 is: 13,896.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.72 : 29,699.46 = 9,271.56 : x
  2. Step 2: Convert to fraction form
    19,815.72/29,699.46 = 9,271.56/x
  3. Step 3: Cross multiply
    19,815.72x = 29,699.46 × 9,271.56
  4. Step 4: Simplify right side
    19,815.72x = 275,360,325.36
  5. Step 5: Solve for x
    x = 275,360,325.36/19,815.72
  6. Step 6: Final answer
    x = 13,896.05

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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.