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Finding the Fourth Proportional to 8,950.86, 13,430.84 and 4,019.49

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Solution

The fourth proportional to 8,950.86, 13,430.84 and 4,019.49 is: 6,031.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.86 : 13,430.84 = 4,019.49 : x
  2. Step 2: Convert to fraction form
    8,950.86/13,430.84 = 4,019.49/x
  3. Step 3: Cross multiply
    8,950.86x = 13,430.84 × 4,019.49
  4. Step 4: Simplify right side
    8,950.86x = 53,985,106.97
  5. Step 5: Solve for x
    x = 53,985,106.97/8,950.86
  6. Step 6: Final answer
    x = 6,031.28

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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.