Home / 10,219.85-14,103.48-6,186.77

Finding the Fourth Proportional to 10,219.85, 14,103.48 and 6,186.77

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Solution

The fourth proportional to 10,219.85, 14,103.48 and 6,186.77 is: 8,537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.85 : 14,103.48 = 6,186.77 : x
  2. Step 2: Convert to fraction form
    10,219.85/14,103.48 = 6,186.77/x
  3. Step 3: Cross multiply
    10,219.85x = 14,103.48 × 6,186.77
  4. Step 4: Simplify right side
    10,219.85x = 87,254,986.96
  5. Step 5: Solve for x
    x = 87,254,986.96/10,219.85
  6. Step 6: Final answer
    x = 8,537.80

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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.