Home / 12,423.07-17,140.44-8,641.99

Finding the Fourth Proportional to 12,423.07, 17,140.44 and 8,641.99

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Solution

The fourth proportional to 12,423.07, 17,140.44 and 8,641.99 is: 11,923.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423.07 : 17,140.44 = 8,641.99 : x
  2. Step 2: Convert to fraction form
    12,423.07/17,140.44 = 8,641.99/x
  3. Step 3: Cross multiply
    12,423.07x = 17,140.44 × 8,641.99
  4. Step 4: Simplify right side
    12,423.07x = 148,127,511.08
  5. Step 5: Solve for x
    x = 148,127,511.08/12,423.07
  6. Step 6: Final answer
    x = 11,923.58

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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.