Home / 12,779.36-19,176.96-4,994.72

Finding the Fourth Proportional to 12,779.36, 19,176.96 and 4,994.72

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Solution

The fourth proportional to 12,779.36, 19,176.96 and 4,994.72 is: 7,495.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779.36 : 19,176.96 = 4,994.72 : x
  2. Step 2: Convert to fraction form
    12,779.36/19,176.96 = 4,994.72/x
  3. Step 3: Cross multiply
    12,779.36x = 19,176.96 × 4,994.72
  4. Step 4: Simplify right side
    12,779.36x = 95,783,545.65
  5. Step 5: Solve for x
    x = 95,783,545.65/12,779.36
  6. Step 6: Final answer
    x = 7,495.18

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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.