Home / 15,783.24-23,678.96-12,976.70

Finding the Fourth Proportional to 15,783.24, 23,678.96 and 12,976.70

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Solution

The fourth proportional to 15,783.24, 23,678.96 and 12,976.70 is: 19,468.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,783.24 : 23,678.96 = 12,976.70 : x
  2. Step 2: Convert to fraction form
    15,783.24/23,678.96 = 12,976.70/x
  3. Step 3: Cross multiply
    15,783.24x = 23,678.96 × 12,976.70
  4. Step 4: Simplify right side
    15,783.24x = 307,274,576.95
  5. Step 5: Solve for x
    x = 307,274,576.95/15,783.24
  6. Step 6: Final answer
    x = 19,468.41

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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.