Home / 13,139.07-19,612.67-11,396.35

Finding the Fourth Proportional to 13,139.07, 19,612.67 and 11,396.35

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Solution

The fourth proportional to 13,139.07, 19,612.67 and 11,396.35 is: 17,011.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,139.07 : 19,612.67 = 11,396.35 : x
  2. Step 2: Convert to fraction form
    13,139.07/19,612.67 = 11,396.35/x
  3. Step 3: Cross multiply
    13,139.07x = 19,612.67 × 11,396.35
  4. Step 4: Simplify right side
    13,139.07x = 223,512,851.75
  5. Step 5: Solve for x
    x = 223,512,851.75/13,139.07
  6. Step 6: Final answer
    x = 17,011.31

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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.