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Finding the Fourth Proportional to 6,999.84, 10,495.09 and 4,779.36

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Solution

The fourth proportional to 6,999.84, 10,495.09 and 4,779.36 is: 7,165.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.84 : 10,495.09 = 4,779.36 : x
  2. Step 2: Convert to fraction form
    6,999.84/10,495.09 = 4,779.36/x
  3. Step 3: Cross multiply
    6,999.84x = 10,495.09 × 4,779.36
  4. Step 4: Simplify right side
    6,999.84x = 50,159,813.34
  5. Step 5: Solve for x
    x = 50,159,813.34/6,999.84
  6. Step 6: Final answer
    x = 7,165.85

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1.5x scale

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.