Home / 15,725.70-23,556.89-7,280.30

Finding the Fourth Proportional to 15,725.70, 23,556.89 and 7,280.30

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Solution

The fourth proportional to 15,725.70, 23,556.89 and 7,280.30 is: 10,905.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,725.70 : 23,556.89 = 7,280.30 : x
  2. Step 2: Convert to fraction form
    15,725.70/23,556.89 = 7,280.30/x
  3. Step 3: Cross multiply
    15,725.70x = 23,556.89 × 7,280.30
  4. Step 4: Simplify right side
    15,725.70x = 171,501,226.27
  5. Step 5: Solve for x
    x = 171,501,226.27/15,725.70
  6. Step 6: Final answer
    x = 10,905.79

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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.