Home / 13,972.92-19,282.24-7,685.30

Finding the Fourth Proportional to 13,972.92, 19,282.24 and 7,685.30

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Solution

The fourth proportional to 13,972.92, 19,282.24 and 7,685.30 is: 10,605.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.92 : 19,282.24 = 7,685.30 : x
  2. Step 2: Convert to fraction form
    13,972.92/19,282.24 = 7,685.30/x
  3. Step 3: Cross multiply
    13,972.92x = 19,282.24 × 7,685.30
  4. Step 4: Simplify right side
    13,972.92x = 148,189,799.07
  5. Step 5: Solve for x
    x = 148,189,799.07/13,972.92
  6. Step 6: Final answer
    x = 10,605.50

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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.