Home / 8,516.85-12,751.35-6,430.29

Finding the Fourth Proportional to 8,516.85, 12,751.35 and 6,430.29

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Solution

The fourth proportional to 8,516.85, 12,751.35 and 6,430.29 is: 9,627.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.85 : 12,751.35 = 6,430.29 : x
  2. Step 2: Convert to fraction form
    8,516.85/12,751.35 = 6,430.29/x
  3. Step 3: Cross multiply
    8,516.85x = 12,751.35 × 6,430.29
  4. Step 4: Simplify right side
    8,516.85x = 81,994,878.39
  5. Step 5: Solve for x
    x = 81,994,878.39/8,516.85
  6. Step 6: Final answer
    x = 9,627.37

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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.