Home / 13,971.64-19,280.49-7,922.99

Finding the Fourth Proportional to 13,971.64, 19,280.49 and 7,922.99

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Solution

The fourth proportional to 13,971.64, 19,280.49 and 7,922.99 is: 10,933.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.64 : 19,280.49 = 7,922.99 : x
  2. Step 2: Convert to fraction form
    13,971.64/19,280.49 = 7,922.99/x
  3. Step 3: Cross multiply
    13,971.64x = 19,280.49 × 7,922.99
  4. Step 4: Simplify right side
    13,971.64x = 152,759,089.85
  5. Step 5: Solve for x
    x = 152,759,089.85/13,971.64
  6. Step 6: Final answer
    x = 10,933.51

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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.