Home / 7,638.56-10,537.20-4,653.68

Finding the Fourth Proportional to 7,638.56, 10,537.20 and 4,653.68

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Solution

The fourth proportional to 7,638.56, 10,537.20 and 4,653.68 is: 6,419.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.56 : 10,537.20 = 4,653.68 : x
  2. Step 2: Convert to fraction form
    7,638.56/10,537.20 = 4,653.68/x
  3. Step 3: Cross multiply
    7,638.56x = 10,537.20 × 4,653.68
  4. Step 4: Simplify right side
    7,638.56x = 49,036,756.90
  5. Step 5: Solve for x
    x = 49,036,756.90/7,638.56
  6. Step 6: Final answer
    x = 6,419.63

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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.