Home / 13,984.65-21,053.52-12,759.93

Finding the Fourth Proportional to 13,984.65, 21,053.52 and 12,759.93

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Solution

The fourth proportional to 13,984.65, 21,053.52 and 12,759.93 is: 19,209.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,984.65 : 21,053.52 = 12,759.93 : x
  2. Step 2: Convert to fraction form
    13,984.65/21,053.52 = 12,759.93/x
  3. Step 3: Cross multiply
    13,984.65x = 21,053.52 × 12,759.93
  4. Step 4: Simplify right side
    13,984.65x = 268,641,441.45
  5. Step 5: Solve for x
    x = 268,641,441.45/13,984.65
  6. Step 6: Final answer
    x = 19,209.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.