Home / 7,415.09-10,231.82-4,430.30

Finding the Fourth Proportional to 7,415.09, 10,231.82 and 4,430.30

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Solution

The fourth proportional to 7,415.09, 10,231.82 and 4,430.30 is: 6,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.09 : 10,231.82 = 4,430.30 : x
  2. Step 2: Convert to fraction form
    7,415.09/10,231.82 = 4,430.30/x
  3. Step 3: Cross multiply
    7,415.09x = 10,231.82 × 4,430.30
  4. Step 4: Simplify right side
    7,415.09x = 45,329,958.84
  5. Step 5: Solve for x
    x = 45,329,958.84/7,415.09
  6. Step 6: Final answer
    x = 6,113.20

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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.