Home / 18,319.16-27,478.74-8,453.06

Finding the Fourth Proportional to 18,319.16, 27,478.74 and 8,453.06

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Solution

The fourth proportional to 18,319.16, 27,478.74 and 8,453.06 is: 12,679.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.16 : 27,478.74 = 8,453.06 : x
  2. Step 2: Convert to fraction form
    18,319.16/27,478.74 = 8,453.06/x
  3. Step 3: Cross multiply
    18,319.16x = 27,478.74 × 8,453.06
  4. Step 4: Simplify right side
    18,319.16x = 232,279,435.29
  5. Step 5: Solve for x
    x = 232,279,435.29/18,319.16
  6. Step 6: Final answer
    x = 12,679.59

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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.