Home / 13,313.67-19,964.67-4,987.85

Finding the Fourth Proportional to 13,313.67, 19,964.67 and 4,987.85

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Solution

The fourth proportional to 13,313.67, 19,964.67 and 4,987.85 is: 7,479.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.67 : 19,964.67 = 4,987.85 : x
  2. Step 2: Convert to fraction form
    13,313.67/19,964.67 = 4,987.85/x
  3. Step 3: Cross multiply
    13,313.67x = 19,964.67 × 4,987.85
  4. Step 4: Simplify right side
    13,313.67x = 99,580,679.44
  5. Step 5: Solve for x
    x = 99,580,679.44/13,313.67
  6. Step 6: Final answer
    x = 7,479.58

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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.