Home / 6,623.89-9,139.60-4,633.72

Finding the Fourth Proportional to 6,623.89, 9,139.60 and 4,633.72

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Solution

The fourth proportional to 6,623.89, 9,139.60 and 4,633.72 is: 6,393.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,623.89 : 9,139.60 = 4,633.72 : x
  2. Step 2: Convert to fraction form
    6,623.89/9,139.60 = 4,633.72/x
  3. Step 3: Cross multiply
    6,623.89x = 9,139.60 × 4,633.72
  4. Step 4: Simplify right side
    6,623.89x = 42,350,330.26
  5. Step 5: Solve for x
    x = 42,350,330.26/6,623.89
  6. Step 6: Final answer
    x = 6,393.58

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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.