Home / 6,555.09-9,822.91-4,815.21

Finding the Fourth Proportional to 6,555.09, 9,822.91 and 4,815.21

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Solution

The fourth proportional to 6,555.09, 9,822.91 and 4,815.21 is: 7,215.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,555.09 : 9,822.91 = 4,815.21 : x
  2. Step 2: Convert to fraction form
    6,555.09/9,822.91 = 4,815.21/x
  3. Step 3: Cross multiply
    6,555.09x = 9,822.91 × 4,815.21
  4. Step 4: Simplify right side
    6,555.09x = 47,299,325.59
  5. Step 5: Solve for x
    x = 47,299,325.59/6,555.09
  6. Step 6: Final answer
    x = 7,215.67

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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.