Home / 15,462.85-21,338.73-8,748.33

Finding the Fourth Proportional to 15,462.85, 21,338.73 and 8,748.33

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Solution

The fourth proportional to 15,462.85, 21,338.73 and 8,748.33 is: 12,072.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,462.85 : 21,338.73 = 8,748.33 : x
  2. Step 2: Convert to fraction form
    15,462.85/21,338.73 = 8,748.33/x
  3. Step 3: Cross multiply
    15,462.85x = 21,338.73 × 8,748.33
  4. Step 4: Simplify right side
    15,462.85x = 186,678,251.82
  5. Step 5: Solve for x
    x = 186,678,251.82/15,462.85
  6. Step 6: Final answer
    x = 12,072.70

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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.