Home / 7,985.55-11,988.88-6,823.00

Finding the Fourth Proportional to 7,985.55, 11,988.88 and 6,823.00

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Solution

The fourth proportional to 7,985.55, 11,988.88 and 6,823.00 is: 10,243.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.55 : 11,988.88 = 6,823.00 : x
  2. Step 2: Convert to fraction form
    7,985.55/11,988.88 = 6,823.00/x
  3. Step 3: Cross multiply
    7,985.55x = 11,988.88 × 6,823.00
  4. Step 4: Simplify right side
    7,985.55x = 81,800,126.17
  5. Step 5: Solve for x
    x = 81,800,126.17/7,985.55
  6. Step 6: Final answer
    x = 10,243.51

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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.