Home / 7,830.31-11,748.44-4,712.47

Finding the Fourth Proportional to 7,830.31, 11,748.44 and 4,712.47

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Solution

The fourth proportional to 7,830.31, 11,748.44 and 4,712.47 is: 7,070.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.31 : 11,748.44 = 4,712.47 : x
  2. Step 2: Convert to fraction form
    7,830.31/11,748.44 = 4,712.47/x
  3. Step 3: Cross multiply
    7,830.31x = 11,748.44 × 4,712.47
  4. Step 4: Simplify right side
    7,830.31x = 55,364,171.05
  5. Step 5: Solve for x
    x = 55,364,171.05/7,830.31
  6. Step 6: Final answer
    x = 7,070.50

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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.