Home / 19,672.64-27,148.36-11,715.20

Finding the Fourth Proportional to 19,672.64, 27,148.36 and 11,715.20

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Solution

The fourth proportional to 19,672.64, 27,148.36 and 11,715.20 is: 16,167.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.64 : 27,148.36 = 11,715.20 : x
  2. Step 2: Convert to fraction form
    19,672.64/27,148.36 = 11,715.20/x
  3. Step 3: Cross multiply
    19,672.64x = 27,148.36 × 11,715.20
  4. Step 4: Simplify right side
    19,672.64x = 318,048,467.07
  5. Step 5: Solve for x
    x = 318,048,467.07/19,672.64
  6. Step 6: Final answer
    x = 16,167.05

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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.