Home / 8,405.55-11,599.20-4,628.58

Finding the Fourth Proportional to 8,405.55, 11,599.20 and 4,628.58

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Solution

The fourth proportional to 8,405.55, 11,599.20 and 4,628.58 is: 6,387.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405.55 : 11,599.20 = 4,628.58 : x
  2. Step 2: Convert to fraction form
    8,405.55/11,599.20 = 4,628.58/x
  3. Step 3: Cross multiply
    8,405.55x = 11,599.20 × 4,628.58
  4. Step 4: Simplify right side
    8,405.55x = 53,687,825.14
  5. Step 5: Solve for x
    x = 53,687,825.14/8,405.55
  6. Step 6: Final answer
    x = 6,387.19

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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.