Home / 11,113.35-16,668.78-4,452.63

Finding the Fourth Proportional to 11,113.35, 16,668.78 and 4,452.63

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Solution

The fourth proportional to 11,113.35, 16,668.78 and 4,452.63 is: 6,678.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.35 : 16,668.78 = 4,452.63 : x
  2. Step 2: Convert to fraction form
    11,113.35/16,668.78 = 4,452.63/x
  3. Step 3: Cross multiply
    11,113.35x = 16,668.78 × 4,452.63
  4. Step 4: Simplify right side
    11,113.35x = 74,219,909.89
  5. Step 5: Solve for x
    x = 74,219,909.89/11,113.35
  6. Step 6: Final answer
    x = 6,678.45

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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.