Home / 18,646.99-27,966.21-5,319.73

Finding the Fourth Proportional to 18,646.99, 27,966.21 and 5,319.73

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Solution

The fourth proportional to 18,646.99, 27,966.21 and 5,319.73 is: 7,978.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,646.99 : 27,966.21 = 5,319.73 : x
  2. Step 2: Convert to fraction form
    18,646.99/27,966.21 = 5,319.73/x
  3. Step 3: Cross multiply
    18,646.99x = 27,966.21 × 5,319.73
  4. Step 4: Simplify right side
    18,646.99x = 148,772,686.32
  5. Step 5: Solve for x
    x = 148,772,686.32/18,646.99
  6. Step 6: Final answer
    x = 7,978.38

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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.