Home / 10,668.10-16,002.15-9,112.90

Finding the Fourth Proportional to 10,668.10, 16,002.15 and 9,112.90

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Solution

The fourth proportional to 10,668.10, 16,002.15 and 9,112.90 is: 13,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,668.10 : 16,002.15 = 9,112.90 : x
  2. Step 2: Convert to fraction form
    10,668.10/16,002.15 = 9,112.90/x
  3. Step 3: Cross multiply
    10,668.10x = 16,002.15 × 9,112.90
  4. Step 4: Simplify right side
    10,668.10x = 145,825,992.74
  5. Step 5: Solve for x
    x = 145,825,992.74/10,668.10
  6. Step 6: Final answer
    x = 13,669.35

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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.