Home / 7,638.05-11,461.32-4,127.99

Finding the Fourth Proportional to 7,638.05, 11,461.32 and 4,127.99

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Solution

The fourth proportional to 7,638.05, 11,461.32 and 4,127.99 is: 6,194.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.05 : 11,461.32 = 4,127.99 : x
  2. Step 2: Convert to fraction form
    7,638.05/11,461.32 = 4,127.99/x
  3. Step 3: Cross multiply
    7,638.05x = 11,461.32 × 4,127.99
  4. Step 4: Simplify right side
    7,638.05x = 47,312,157.04
  5. Step 5: Solve for x
    x = 47,312,157.04/7,638.05
  6. Step 6: Final answer
    x = 6,194.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.