Home / 10,145.57-13,999.55-6,613.56

Finding the Fourth Proportional to 10,145.57, 13,999.55 and 6,613.56

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Solution

The fourth proportional to 10,145.57, 13,999.55 and 6,613.56 is: 9,125.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.57 : 13,999.55 = 6,613.56 : x
  2. Step 2: Convert to fraction form
    10,145.57/13,999.55 = 6,613.56/x
  3. Step 3: Cross multiply
    10,145.57x = 13,999.55 × 6,613.56
  4. Step 4: Simplify right side
    10,145.57x = 92,586,830.83
  5. Step 5: Solve for x
    x = 92,586,830.83/10,145.57
  6. Step 6: Final answer
    x = 9,125.84

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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.