Home / 12,331.74-18,489.48-4,430.30

Finding the Fourth Proportional to 12,331.74, 18,489.48 and 4,430.30

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Solution

The fourth proportional to 12,331.74, 18,489.48 and 4,430.30 is: 6,642.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.74 : 18,489.48 = 4,430.30 : x
  2. Step 2: Convert to fraction form
    12,331.74/18,489.48 = 4,430.30/x
  3. Step 3: Cross multiply
    12,331.74x = 18,489.48 × 4,430.30
  4. Step 4: Simplify right side
    12,331.74x = 81,913,850.80
  5. Step 5: Solve for x
    x = 81,913,850.80/12,331.74
  6. Step 6: Final answer
    x = 6,642.52

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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.