Home / 15,368.43-21,212.69-8,996.37

Finding the Fourth Proportional to 15,368.43, 21,212.69 and 8,996.37

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Solution

The fourth proportional to 15,368.43, 21,212.69 and 8,996.37 is: 12,417.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,368.43 : 21,212.69 = 8,996.37 : x
  2. Step 2: Convert to fraction form
    15,368.43/21,212.69 = 8,996.37/x
  3. Step 3: Cross multiply
    15,368.43x = 21,212.69 × 8,996.37
  4. Step 4: Simplify right side
    15,368.43x = 190,837,083.41
  5. Step 5: Solve for x
    x = 190,837,083.41/15,368.43
  6. Step 6: Final answer
    x = 12,417.47

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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.