Home / 14,064.37-19,408.21-7,690.80

Finding the Fourth Proportional to 14,064.37, 19,408.21 and 7,690.80

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Solution

The fourth proportional to 14,064.37, 19,408.21 and 7,690.80 is: 10,612.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,064.37 : 19,408.21 = 7,690.80 : x
  2. Step 2: Convert to fraction form
    14,064.37/19,408.21 = 7,690.80/x
  3. Step 3: Cross multiply
    14,064.37x = 19,408.21 × 7,690.80
  4. Step 4: Simplify right side
    14,064.37x = 149,264,661.47
  5. Step 5: Solve for x
    x = 149,264,661.47/14,064.37
  6. Step 6: Final answer
    x = 10,612.96

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1.5x scale

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.