Home / 15,783.40-23,675.10-11,846.80

Finding the Fourth Proportional to 15,783.40, 23,675.10 and 11,846.80

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Solution

The fourth proportional to 15,783.40, 23,675.10 and 11,846.80 is: 17,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,783.40 : 23,675.10 = 11,846.80 : x
  2. Step 2: Convert to fraction form
    15,783.40/23,675.10 = 11,846.80/x
  3. Step 3: Cross multiply
    15,783.40x = 23,675.10 × 11,846.80
  4. Step 4: Simplify right side
    15,783.40x = 280,474,174.68
  5. Step 5: Solve for x
    x = 280,474,174.68/15,783.40
  6. Step 6: Final answer
    x = 17,770.20

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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.