Home / 13,990.84-19,308.45-7,704.34

Finding the Fourth Proportional to 13,990.84, 19,308.45 and 7,704.34

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Solution

The fourth proportional to 13,990.84, 19,308.45 and 7,704.34 is: 10,632.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.84 : 19,308.45 = 7,704.34 : x
  2. Step 2: Convert to fraction form
    13,990.84/19,308.45 = 7,704.34/x
  3. Step 3: Cross multiply
    13,990.84x = 19,308.45 × 7,704.34
  4. Step 4: Simplify right side
    13,990.84x = 148,758,863.67
  5. Step 5: Solve for x
    x = 148,758,863.67/13,990.84
  6. Step 6: Final answer
    x = 10,632.59

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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.