Home / 14,140.08-21,206.62-4,779.89

Finding the Fourth Proportional to 14,140.08, 21,206.62 and 4,779.89

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Solution

The fourth proportional to 14,140.08, 21,206.62 and 4,779.89 is: 7,168.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.08 : 21,206.62 = 4,779.89 : x
  2. Step 2: Convert to fraction form
    14,140.08/21,206.62 = 4,779.89/x
  3. Step 3: Cross multiply
    14,140.08x = 21,206.62 × 4,779.89
  4. Step 4: Simplify right side
    14,140.08x = 101,365,363.89
  5. Step 5: Solve for x
    x = 101,365,363.89/14,140.08
  6. Step 6: Final answer
    x = 7,168.65

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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.