Home / 8,509.12-11,743.68-4,783.84

Finding the Fourth Proportional to 8,509.12, 11,743.68 and 4,783.84

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Solution

The fourth proportional to 8,509.12, 11,743.68 and 4,783.84 is: 6,602.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,509.12 : 11,743.68 = 4,783.84 : x
  2. Step 2: Convert to fraction form
    8,509.12/11,743.68 = 4,783.84/x
  3. Step 3: Cross multiply
    8,509.12x = 11,743.68 × 4,783.84
  4. Step 4: Simplify right side
    8,509.12x = 56,179,886.13
  5. Step 5: Solve for x
    x = 56,179,886.13/8,509.12
  6. Step 6: Final answer
    x = 6,602.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.