Home / 10,385.55-14,310.68-8,020.35

Finding the Fourth Proportional to 10,385.55, 14,310.68 and 8,020.35

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Solution

The fourth proportional to 10,385.55, 14,310.68 and 8,020.35 is: 11,051.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.55 : 14,310.68 = 8,020.35 : x
  2. Step 2: Convert to fraction form
    10,385.55/14,310.68 = 8,020.35/x
  3. Step 3: Cross multiply
    10,385.55x = 14,310.68 × 8,020.35
  4. Step 4: Simplify right side
    10,385.55x = 114,776,622.24
  5. Step 5: Solve for x
    x = 114,776,622.24/10,385.55
  6. Step 6: Final answer
    x = 11,051.57

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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.