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Finding the Fourth Proportional to 17,686.94, 26,506.96 and 12,984.96

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Solution

The fourth proportional to 17,686.94, 26,506.96 and 12,984.96 is: 19,460.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,686.94 : 26,506.96 = 12,984.96 : x
  2. Step 2: Convert to fraction form
    17,686.94/26,506.96 = 12,984.96/x
  3. Step 3: Cross multiply
    17,686.94x = 26,506.96 × 12,984.96
  4. Step 4: Simplify right side
    17,686.94x = 344,191,882.26
  5. Step 5: Solve for x
    x = 344,191,882.26/17,686.94
  6. Step 6: Final answer
    x = 19,460.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.