Home / 6,824.48-9,421.80-6,430.82

Finding the Fourth Proportional to 6,824.48, 9,421.80 and 6,430.82

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Solution

The fourth proportional to 6,824.48, 9,421.80 and 6,430.82 is: 8,878.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,824.48 : 9,421.80 = 6,430.82 : x
  2. Step 2: Convert to fraction form
    6,824.48/9,421.80 = 6,430.82/x
  3. Step 3: Cross multiply
    6,824.48x = 9,421.80 × 6,430.82
  4. Step 4: Simplify right side
    6,824.48x = 60,589,899.88
  5. Step 5: Solve for x
    x = 60,589,899.88/6,824.48
  6. Step 6: Final answer
    x = 8,878.32

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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.