Home / 15,775.56-23,661.72-5,388.12

Finding the Fourth Proportional to 15,775.56, 23,661.72 and 5,388.12

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Solution

The fourth proportional to 15,775.56, 23,661.72 and 5,388.12 is: 8,081.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,775.56 : 23,661.72 = 5,388.12 : x
  2. Step 2: Convert to fraction form
    15,775.56/23,661.72 = 5,388.12/x
  3. Step 3: Cross multiply
    15,775.56x = 23,661.72 × 5,388.12
  4. Step 4: Simplify right side
    15,775.56x = 127,492,186.77
  5. Step 5: Solve for x
    x = 127,492,186.77/15,775.56
  6. Step 6: Final answer
    x = 8,081.63

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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.