Home / 14,639.80-21,957.44-4,779.08

Finding the Fourth Proportional to 14,639.80, 21,957.44 and 4,779.08

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Solution

The fourth proportional to 14,639.80, 21,957.44 and 4,779.08 is: 7,167.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.80 : 21,957.44 = 4,779.08 : x
  2. Step 2: Convert to fraction form
    14,639.80/21,957.44 = 4,779.08/x
  3. Step 3: Cross multiply
    14,639.80x = 21,957.44 × 4,779.08
  4. Step 4: Simplify right side
    14,639.80x = 104,936,362.36
  5. Step 5: Solve for x
    x = 104,936,362.36/14,639.80
  6. Step 6: Final answer
    x = 7,167.88

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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.