Home / 13,461.82-18,575-12,373.06

Finding the Fourth Proportional to 13,461.82, 18,575 and 12,373.06

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Solution

The fourth proportional to 13,461.82, 18,575 and 12,373.06 is: 17,072.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.82 : 18,575 = 12,373.06 : x
  2. Step 2: Convert to fraction form
    13,461.82/18,575 = 12,373.06/x
  3. Step 3: Cross multiply
    13,461.82x = 18,575 × 12,373.06
  4. Step 4: Simplify right side
    13,461.82x = 229,829,589.50
  5. Step 5: Solve for x
    x = 229,829,589.50/13,461.82
  6. Step 6: Final answer
    x = 17,072.70

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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.