Home / 14,064.15-19,408.62-7,690.65

Finding the Fourth Proportional to 14,064.15, 19,408.62 and 7,690.65

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Solution

The fourth proportional to 14,064.15, 19,408.62 and 7,690.65 is: 10,613.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,064.15 : 19,408.62 = 7,690.65 : x
  2. Step 2: Convert to fraction form
    14,064.15/19,408.62 = 7,690.65/x
  3. Step 3: Cross multiply
    14,064.15x = 19,408.62 × 7,690.65
  4. Step 4: Simplify right side
    14,064.15x = 149,264,903.40
  5. Step 5: Solve for x
    x = 149,264,903.40/14,064.15
  6. Step 6: Final answer
    x = 10,613.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.