Home / 14,642.85-21,967.16-4,779.48

Finding the Fourth Proportional to 14,642.85, 21,967.16 and 4,779.48

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Solution

The fourth proportional to 14,642.85, 21,967.16 and 4,779.48 is: 7,170.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,642.85 : 21,967.16 = 4,779.48 : x
  2. Step 2: Convert to fraction form
    14,642.85/21,967.16 = 4,779.48/x
  3. Step 3: Cross multiply
    14,642.85x = 21,967.16 × 4,779.48
  4. Step 4: Simplify right side
    14,642.85x = 104,991,601.88
  5. Step 5: Solve for x
    x = 104,991,601.88/14,642.85
  6. Step 6: Final answer
    x = 7,170.16

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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.