Home / 17,013.66-25,422.89-12,988.77

Finding the Fourth Proportional to 17,013.66, 25,422.89 and 12,988.77

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Solution

The fourth proportional to 17,013.66, 25,422.89 and 12,988.77 is: 19,408.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,013.66 : 25,422.89 = 12,988.77 : x
  2. Step 2: Convert to fraction form
    17,013.66/25,422.89 = 12,988.77/x
  3. Step 3: Cross multiply
    17,013.66x = 25,422.89 × 12,988.77
  4. Step 4: Simplify right side
    17,013.66x = 330,212,006.00
  5. Step 5: Solve for x
    x = 330,212,006.00/17,013.66
  6. Step 6: Final answer
    x = 19,408.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.