Home / 19,768.68-27,283.86-12,702.60

Finding the Fourth Proportional to 19,768.68, 27,283.86 and 12,702.60

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Solution

The fourth proportional to 19,768.68, 27,283.86 and 12,702.60 is: 17,531.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,768.68 : 27,283.86 = 12,702.60 : x
  2. Step 2: Convert to fraction form
    19,768.68/27,283.86 = 12,702.60/x
  3. Step 3: Cross multiply
    19,768.68x = 27,283.86 × 12,702.60
  4. Step 4: Simplify right side
    19,768.68x = 346,575,960.04
  5. Step 5: Solve for x
    x = 346,575,960.04/19,768.68
  6. Step 6: Final answer
    x = 17,531.57

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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.