Home / 13,358.88-19,939.66-11,782.99

Finding the Fourth Proportional to 13,358.88, 19,939.66 and 11,782.99

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Solution

The fourth proportional to 13,358.88, 19,939.66 and 11,782.99 is: 17,587.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.88 : 19,939.66 = 11,782.99 : x
  2. Step 2: Convert to fraction form
    13,358.88/19,939.66 = 11,782.99/x
  3. Step 3: Cross multiply
    13,358.88x = 19,939.66 × 11,782.99
  4. Step 4: Simplify right side
    13,358.88x = 234,948,814.38
  5. Step 5: Solve for x
    x = 234,948,814.38/13,358.88
  6. Step 6: Final answer
    x = 17,587.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.