Home / 13,988.58-19,290.57-8,950.97

Finding the Fourth Proportional to 13,988.58, 19,290.57 and 8,950.97

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Solution

The fourth proportional to 13,988.58, 19,290.57 and 8,950.97 is: 12,343.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.58 : 19,290.57 = 8,950.97 : x
  2. Step 2: Convert to fraction form
    13,988.58/19,290.57 = 8,950.97/x
  3. Step 3: Cross multiply
    13,988.58x = 19,290.57 × 8,950.97
  4. Step 4: Simplify right side
    13,988.58x = 172,669,216.90
  5. Step 5: Solve for x
    x = 172,669,216.90/13,988.58
  6. Step 6: Final answer
    x = 12,343.58

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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.