Home / 6,518.10-8,995.90-3,686.34

Finding the Fourth Proportional to 6,518.10, 8,995.90 and 3,686.34

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Solution

The fourth proportional to 6,518.10, 8,995.90 and 3,686.34 is: 5,087.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,518.10 : 8,995.90 = 3,686.34 : x
  2. Step 2: Convert to fraction form
    6,518.10/8,995.90 = 3,686.34/x
  3. Step 3: Cross multiply
    6,518.10x = 8,995.90 × 3,686.34
  4. Step 4: Simplify right side
    6,518.10x = 33,161,946.01
  5. Step 5: Solve for x
    x = 33,161,946.01/6,518.10
  6. Step 6: Final answer
    x = 5,087.67

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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.