Home / 19,836.80-27,352.36-12,657.16

Finding the Fourth Proportional to 19,836.80, 27,352.36 and 12,657.16

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Solution

The fourth proportional to 19,836.80, 27,352.36 and 12,657.16 is: 17,452.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,836.80 : 27,352.36 = 12,657.16 : x
  2. Step 2: Convert to fraction form
    19,836.80/27,352.36 = 12,657.16/x
  3. Step 3: Cross multiply
    19,836.80x = 27,352.36 × 12,657.16
  4. Step 4: Simplify right side
    19,836.80x = 346,203,196.90
  5. Step 5: Solve for x
    x = 346,203,196.90/19,836.80
  6. Step 6: Final answer
    x = 17,452.57

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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.