Home / 11,009.45-16,504.45-8,423.93

Finding the Fourth Proportional to 11,009.45, 16,504.45 and 8,423.93

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Solution

The fourth proportional to 11,009.45, 16,504.45 and 8,423.93 is: 12,628.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,009.45 : 16,504.45 = 8,423.93 : x
  2. Step 2: Convert to fraction form
    11,009.45/16,504.45 = 8,423.93/x
  3. Step 3: Cross multiply
    11,009.45x = 16,504.45 × 8,423.93
  4. Step 4: Simplify right side
    11,009.45x = 139,032,331.49
  5. Step 5: Solve for x
    x = 139,032,331.49/11,009.45
  6. Step 6: Final answer
    x = 12,628.45

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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.