Home / 7,161.29-10,731.55-5,085.36

Finding the Fourth Proportional to 7,161.29, 10,731.55 and 5,085.36

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Solution

The fourth proportional to 7,161.29, 10,731.55 and 5,085.36 is: 7,620.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.29 : 10,731.55 = 5,085.36 : x
  2. Step 2: Convert to fraction form
    7,161.29/10,731.55 = 5,085.36/x
  3. Step 3: Cross multiply
    7,161.29x = 10,731.55 × 5,085.36
  4. Step 4: Simplify right side
    7,161.29x = 54,573,795.11
  5. Step 5: Solve for x
    x = 54,573,795.11/7,161.29
  6. Step 6: Final answer
    x = 7,620.67

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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.