Home / 13,986.47-19,301.29-7,698.85

Finding the Fourth Proportional to 13,986.47, 19,301.29 and 7,698.85

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Solution

The fourth proportional to 13,986.47, 19,301.29 and 7,698.85 is: 10,624.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.47 : 19,301.29 = 7,698.85 : x
  2. Step 2: Convert to fraction form
    13,986.47/19,301.29 = 7,698.85/x
  3. Step 3: Cross multiply
    13,986.47x = 19,301.29 × 7,698.85
  4. Step 4: Simplify right side
    13,986.47x = 148,597,669.02
  5. Step 5: Solve for x
    x = 148,597,669.02/13,986.47
  6. Step 6: Final answer
    x = 10,624.39

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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.