Home / 7,918.88-11,882.48-4,638.40

Finding the Fourth Proportional to 7,918.88, 11,882.48 and 4,638.40

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Solution

The fourth proportional to 7,918.88, 11,882.48 and 4,638.40 is: 6,960.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.88 : 11,882.48 = 4,638.40 : x
  2. Step 2: Convert to fraction form
    7,918.88/11,882.48 = 4,638.40/x
  3. Step 3: Cross multiply
    7,918.88x = 11,882.48 × 4,638.40
  4. Step 4: Simplify right side
    7,918.88x = 55,115,695.23
  5. Step 5: Solve for x
    x = 55,115,695.23/7,918.88
  6. Step 6: Final answer
    x = 6,960.04

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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.