Home / 15,418.36-23,121.78-5,555.08

Finding the Fourth Proportional to 15,418.36, 23,121.78 and 5,555.08

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Solution

The fourth proportional to 15,418.36, 23,121.78 and 5,555.08 is: 8,330.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.36 : 23,121.78 = 5,555.08 : x
  2. Step 2: Convert to fraction form
    15,418.36/23,121.78 = 5,555.08/x
  3. Step 3: Cross multiply
    15,418.36x = 23,121.78 × 5,555.08
  4. Step 4: Simplify right side
    15,418.36x = 128,443,337.64
  5. Step 5: Solve for x
    x = 128,443,337.64/15,418.36
  6. Step 6: Final answer
    x = 8,330.54

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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.