Home / 13,974.80-19,284.08-7,687.17

Finding the Fourth Proportional to 13,974.80, 19,284.08 and 7,687.17

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Solution

The fourth proportional to 13,974.80, 19,284.08 and 7,687.17 is: 10,607.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.80 : 19,284.08 = 7,687.17 : x
  2. Step 2: Convert to fraction form
    13,974.80/19,284.08 = 7,687.17/x
  3. Step 3: Cross multiply
    13,974.80x = 19,284.08 × 7,687.17
  4. Step 4: Simplify right side
    13,974.80x = 148,239,962.82
  5. Step 5: Solve for x
    x = 148,239,962.82/13,974.80
  6. Step 6: Final answer
    x = 10,607.67

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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.