Home / 19,890.16-29,833.64-8,797.20

Finding the Fourth Proportional to 19,890.16, 29,833.64 and 8,797.20

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Solution

The fourth proportional to 19,890.16, 29,833.64 and 8,797.20 is: 13,195.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.16 : 29,833.64 = 8,797.20 : x
  2. Step 2: Convert to fraction form
    19,890.16/29,833.64 = 8,797.20/x
  3. Step 3: Cross multiply
    19,890.16x = 29,833.64 × 8,797.20
  4. Step 4: Simplify right side
    19,890.16x = 262,452,497.81
  5. Step 5: Solve for x
    x = 262,452,497.81/19,890.16
  6. Step 6: Final answer
    x = 13,195.09

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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.