Home / 15,167.64-20,931.26-8,453.56

Finding the Fourth Proportional to 15,167.64, 20,931.26 and 8,453.56

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Solution

The fourth proportional to 15,167.64, 20,931.26 and 8,453.56 is: 11,665.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167.64 : 20,931.26 = 8,453.56 : x
  2. Step 2: Convert to fraction form
    15,167.64/20,931.26 = 8,453.56/x
  3. Step 3: Cross multiply
    15,167.64x = 20,931.26 × 8,453.56
  4. Step 4: Simplify right side
    15,167.64x = 176,943,662.29
  5. Step 5: Solve for x
    x = 176,943,662.29/15,167.64
  6. Step 6: Final answer
    x = 11,665.87

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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.