Home / 13,974.12-19,284.35-7,686.63

Finding the Fourth Proportional to 13,974.12, 19,284.35 and 7,686.63

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Solution

The fourth proportional to 13,974.12, 19,284.35 and 7,686.63 is: 10,607.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.12 : 19,284.35 = 7,686.63 : x
  2. Step 2: Convert to fraction form
    13,974.12/19,284.35 = 7,686.63/x
  3. Step 3: Cross multiply
    13,974.12x = 19,284.35 × 7,686.63
  4. Step 4: Simplify right side
    13,974.12x = 148,231,624.81
  5. Step 5: Solve for x
    x = 148,231,624.81/13,974.12
  6. Step 6: Final answer
    x = 10,607.58

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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.