Home / 15,783.20-23,678.77-4,538.56

Finding the Fourth Proportional to 15,783.20, 23,678.77 and 4,538.56

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Solution

The fourth proportional to 15,783.20, 23,678.77 and 4,538.56 is: 6,808.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,783.20 : 23,678.77 = 4,538.56 : x
  2. Step 2: Convert to fraction form
    15,783.20/23,678.77 = 4,538.56/x
  3. Step 3: Cross multiply
    15,783.20x = 23,678.77 × 4,538.56
  4. Step 4: Simplify right side
    15,783.20x = 107,467,518.37
  5. Step 5: Solve for x
    x = 107,467,518.37/15,783.20
  6. Step 6: Final answer
    x = 6,808.98

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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.