Home / 18,470.56-25,467.10-12,810.15

Finding the Fourth Proportional to 18,470.56, 25,467.10 and 12,810.15

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Solution

The fourth proportional to 18,470.56, 25,467.10 and 12,810.15 is: 17,662.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,470.56 : 25,467.10 = 12,810.15 : x
  2. Step 2: Convert to fraction form
    18,470.56/25,467.10 = 12,810.15/x
  3. Step 3: Cross multiply
    18,470.56x = 25,467.10 × 12,810.15
  4. Step 4: Simplify right side
    18,470.56x = 326,237,371.07
  5. Step 5: Solve for x
    x = 326,237,371.07/18,470.56
  6. Step 6: Final answer
    x = 17,662.56

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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.