Home / 7,408.42-10,221.55-4,423.17

Finding the Fourth Proportional to 7,408.42, 10,221.55 and 4,423.17

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Solution

The fourth proportional to 7,408.42, 10,221.55 and 4,423.17 is: 6,102.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.42 : 10,221.55 = 4,423.17 : x
  2. Step 2: Convert to fraction form
    7,408.42/10,221.55 = 4,423.17/x
  3. Step 3: Cross multiply
    7,408.42x = 10,221.55 × 4,423.17
  4. Step 4: Simplify right side
    7,408.42x = 45,211,668.56
  5. Step 5: Solve for x
    x = 45,211,668.56/7,408.42
  6. Step 6: Final answer
    x = 6,102.74

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Half scale
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Double scale
Find fourth proportional to 7,409.42, 10,222.93 and 4,424.17
Similar ratio
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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.