Home / 11,890.48-16,425.95-9,497.31

Finding the Fourth Proportional to 11,890.48, 16,425.95 and 9,497.31

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Solution

The fourth proportional to 11,890.48, 16,425.95 and 9,497.31 is: 13,119.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.48 : 16,425.95 = 9,497.31 : x
  2. Step 2: Convert to fraction form
    11,890.48/16,425.95 = 9,497.31/x
  3. Step 3: Cross multiply
    11,890.48x = 16,425.95 × 9,497.31
  4. Step 4: Simplify right side
    11,890.48x = 156,002,339.19
  5. Step 5: Solve for x
    x = 156,002,339.19/11,890.48
  6. Step 6: Final answer
    x = 13,119.94

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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.