Home / 19,684.98-27,157.95-12,615.30

Finding the Fourth Proportional to 19,684.98, 27,157.95 and 12,615.30

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Solution

The fourth proportional to 19,684.98, 27,157.95 and 12,615.30 is: 17,404.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,684.98 : 27,157.95 = 12,615.30 : x
  2. Step 2: Convert to fraction form
    19,684.98/27,157.95 = 12,615.30/x
  3. Step 3: Cross multiply
    19,684.98x = 27,157.95 × 12,615.30
  4. Step 4: Simplify right side
    19,684.98x = 342,605,686.64
  5. Step 5: Solve for x
    x = 342,605,686.64/19,684.98
  6. Step 6: Final answer
    x = 17,404.42

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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.