Home / 10,546.58-15,820.95-3,978.29

Finding the Fourth Proportional to 10,546.58, 15,820.95 and 3,978.29

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Solution

The fourth proportional to 10,546.58, 15,820.95 and 3,978.29 is: 5,967.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,546.58 : 15,820.95 = 3,978.29 : x
  2. Step 2: Convert to fraction form
    10,546.58/15,820.95 = 3,978.29/x
  3. Step 3: Cross multiply
    10,546.58x = 15,820.95 × 3,978.29
  4. Step 4: Simplify right side
    10,546.58x = 62,940,327.18
  5. Step 5: Solve for x
    x = 62,940,327.18/10,546.58
  6. Step 6: Final answer
    x = 5,967.84

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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.