Home / 11,688.45-16,133.49-8,152.80

Finding the Fourth Proportional to 11,688.45, 16,133.49 and 8,152.80

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Solution

The fourth proportional to 11,688.45, 16,133.49 and 8,152.80 is: 11,253.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.45 : 16,133.49 = 8,152.80 : x
  2. Step 2: Convert to fraction form
    11,688.45/16,133.49 = 8,152.80/x
  3. Step 3: Cross multiply
    11,688.45x = 16,133.49 × 8,152.80
  4. Step 4: Simplify right side
    11,688.45x = 131,533,117.27
  5. Step 5: Solve for x
    x = 131,533,117.27/11,688.45
  6. Step 6: Final answer
    x = 11,253.26

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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.