Home / 18,605.04-25,681.70-12,319.44

Finding the Fourth Proportional to 18,605.04, 25,681.70 and 12,319.44

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Solution

The fourth proportional to 18,605.04, 25,681.70 and 12,319.44 is: 17,005.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.04 : 25,681.70 = 12,319.44 : x
  2. Step 2: Convert to fraction form
    18,605.04/25,681.70 = 12,319.44/x
  3. Step 3: Cross multiply
    18,605.04x = 25,681.70 × 12,319.44
  4. Step 4: Simplify right side
    18,605.04x = 316,384,162.25
  5. Step 5: Solve for x
    x = 316,384,162.25/18,605.04
  6. Step 6: Final answer
    x = 17,005.29

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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.