Home / 15,775.77-23,680.08-11,620.47

Finding the Fourth Proportional to 15,775.77, 23,680.08 and 11,620.47

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Solution

The fourth proportional to 15,775.77, 23,680.08 and 11,620.47 is: 17,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,775.77 : 23,680.08 = 11,620.47 : x
  2. Step 2: Convert to fraction form
    15,775.77/23,680.08 = 11,620.47/x
  3. Step 3: Cross multiply
    15,775.77x = 23,680.08 × 11,620.47
  4. Step 4: Simplify right side
    15,775.77x = 275,173,659.24
  5. Step 5: Solve for x
    x = 275,173,659.24/15,775.77
  6. Step 6: Final answer
    x = 17,442.80

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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.