Home / 8,405.55-11,604.66-7,471.35

Finding the Fourth Proportional to 8,405.55, 11,604.66 and 7,471.35

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Solution

The fourth proportional to 8,405.55, 11,604.66 and 7,471.35 is: 10,314.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405.55 : 11,604.66 = 7,471.35 : x
  2. Step 2: Convert to fraction form
    8,405.55/11,604.66 = 7,471.35/x
  3. Step 3: Cross multiply
    8,405.55x = 11,604.66 × 7,471.35
  4. Step 4: Simplify right side
    8,405.55x = 86,702,476.49
  5. Step 5: Solve for x
    x = 86,702,476.49/8,405.55
  6. Step 6: Final answer
    x = 10,314.91

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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.