Home / 15,527.07-21,427.33-8,453.49

Finding the Fourth Proportional to 15,527.07, 21,427.33 and 8,453.49

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Solution

The fourth proportional to 15,527.07, 21,427.33 and 8,453.49 is: 11,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.07 : 21,427.33 = 8,453.49 : x
  2. Step 2: Convert to fraction form
    15,527.07/21,427.33 = 8,453.49/x
  3. Step 3: Cross multiply
    15,527.07x = 21,427.33 × 8,453.49
  4. Step 4: Simplify right side
    15,527.07x = 181,135,612.75
  5. Step 5: Solve for x
    x = 181,135,612.75/15,527.07
  6. Step 6: Final answer
    x = 11,665.80

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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.