Home / 19,539.68-29,313.62-6,391.02

Finding the Fourth Proportional to 19,539.68, 29,313.62 and 6,391.02

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Solution

The fourth proportional to 19,539.68, 29,313.62 and 6,391.02 is: 9,587.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,539.68 : 29,313.62 = 6,391.02 : x
  2. Step 2: Convert to fraction form
    19,539.68/29,313.62 = 6,391.02/x
  3. Step 3: Cross multiply
    19,539.68x = 29,313.62 × 6,391.02
  4. Step 4: Simplify right side
    19,539.68x = 187,343,989.00
  5. Step 5: Solve for x
    x = 187,343,989.00/19,539.68
  6. Step 6: Final answer
    x = 9,587.88

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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.