Home / 8,208.07-11,331.80-5,421.67

Finding the Fourth Proportional to 8,208.07, 11,331.80 and 5,421.67

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Solution

The fourth proportional to 8,208.07, 11,331.80 and 5,421.67 is: 7,484.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.07 : 11,331.80 = 5,421.67 : x
  2. Step 2: Convert to fraction form
    8,208.07/11,331.80 = 5,421.67/x
  3. Step 3: Cross multiply
    8,208.07x = 11,331.80 × 5,421.67
  4. Step 4: Simplify right side
    8,208.07x = 61,437,245.00
  5. Step 5: Solve for x
    x = 61,437,245.00/8,208.07
  6. Step 6: Final answer
    x = 7,484.98

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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.