Home / 7,711.03-10,638.61-5,021.02

Finding the Fourth Proportional to 7,711.03, 10,638.61 and 5,021.02

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Solution

The fourth proportional to 7,711.03, 10,638.61 and 5,021.02 is: 6,927.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,711.03 : 10,638.61 = 5,021.02 : x
  2. Step 2: Convert to fraction form
    7,711.03/10,638.61 = 5,021.02/x
  3. Step 3: Cross multiply
    7,711.03x = 10,638.61 × 5,021.02
  4. Step 4: Simplify right side
    7,711.03x = 53,416,648.48
  5. Step 5: Solve for x
    x = 53,416,648.48/7,711.03
  6. Step 6: Final answer
    x = 6,927.30

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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.