Home / 13,988.23-19,297.23-8,319.79

Finding the Fourth Proportional to 13,988.23, 19,297.23 and 8,319.79

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Solution

The fourth proportional to 13,988.23, 19,297.23 and 8,319.79 is: 11,477.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.23 : 19,297.23 = 8,319.79 : x
  2. Step 2: Convert to fraction form
    13,988.23/19,297.23 = 8,319.79/x
  3. Step 3: Cross multiply
    13,988.23x = 19,297.23 × 8,319.79
  4. Step 4: Simplify right side
    13,988.23x = 160,548,804.70
  5. Step 5: Solve for x
    x = 160,548,804.70/13,988.23
  6. Step 6: Final answer
    x = 11,477.43

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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.