Home / 11,801.18-16,291.04-8,400.40

Finding the Fourth Proportional to 11,801.18, 16,291.04 and 8,400.40

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Solution

The fourth proportional to 11,801.18, 16,291.04 and 8,400.40 is: 11,596.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,801.18 : 16,291.04 = 8,400.40 : x
  2. Step 2: Convert to fraction form
    11,801.18/16,291.04 = 8,400.40/x
  3. Step 3: Cross multiply
    11,801.18x = 16,291.04 × 8,400.40
  4. Step 4: Simplify right side
    11,801.18x = 136,851,252.42
  5. Step 5: Solve for x
    x = 136,851,252.42/11,801.18
  6. Step 6: Final answer
    x = 11,596.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.