Home / 7,985.96-11,021.10-4,627.70

Finding the Fourth Proportional to 7,985.96, 11,021.10 and 4,627.70

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Solution

The fourth proportional to 7,985.96, 11,021.10 and 4,627.70 is: 6,386.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.96 : 11,021.10 = 4,627.70 : x
  2. Step 2: Convert to fraction form
    7,985.96/11,021.10 = 4,627.70/x
  3. Step 3: Cross multiply
    7,985.96x = 11,021.10 × 4,627.70
  4. Step 4: Simplify right side
    7,985.96x = 51,002,344.47
  5. Step 5: Solve for x
    x = 51,002,344.47/7,985.96
  6. Step 6: Final answer
    x = 6,386.50

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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.