Home / 15,665.64-23,498.54-3,978.84

Finding the Fourth Proportional to 15,665.64, 23,498.54 and 3,978.84

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Solution

The fourth proportional to 15,665.64, 23,498.54 and 3,978.84 is: 5,968.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,665.64 : 23,498.54 = 3,978.84 : x
  2. Step 2: Convert to fraction form
    15,665.64/23,498.54 = 3,978.84/x
  3. Step 3: Cross multiply
    15,665.64x = 23,498.54 × 3,978.84
  4. Step 4: Simplify right side
    15,665.64x = 93,496,930.89
  5. Step 5: Solve for x
    x = 93,496,930.89/15,665.64
  6. Step 6: Final answer
    x = 5,968.28

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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.