Home / 14,063.72-19,408.45-7,690.74

Finding the Fourth Proportional to 14,063.72, 19,408.45 and 7,690.74

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Solution

The fourth proportional to 14,063.72, 19,408.45 and 7,690.74 is: 10,613.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,063.72 : 19,408.45 = 7,690.74 : x
  2. Step 2: Convert to fraction form
    14,063.72/19,408.45 = 7,690.74/x
  3. Step 3: Cross multiply
    14,063.72x = 19,408.45 × 7,690.74
  4. Step 4: Simplify right side
    14,063.72x = 149,265,323.53
  5. Step 5: Solve for x
    x = 149,265,323.53/14,063.72
  6. Step 6: Final answer
    x = 10,613.51

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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.