Home / 7,765.98-11,642.58-4,430.49

Finding the Fourth Proportional to 7,765.98, 11,642.58 and 4,430.49

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Solution

The fourth proportional to 7,765.98, 11,642.58 and 4,430.49 is: 6,642.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.98 : 11,642.58 = 4,430.49 : x
  2. Step 2: Convert to fraction form
    7,765.98/11,642.58 = 4,430.49/x
  3. Step 3: Cross multiply
    7,765.98x = 11,642.58 × 4,430.49
  4. Step 4: Simplify right side
    7,765.98x = 51,582,334.26
  5. Step 5: Solve for x
    x = 51,582,334.26/7,765.98
  6. Step 6: Final answer
    x = 6,642.09

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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.