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Finding the Fourth Proportional to 16,840.16, 23,240.08 and 9,388

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Solution

The fourth proportional to 16,840.16, 23,240.08 and 9,388 is: 12,955.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,840.16 : 23,240.08 = 9,388 : x
  2. Step 2: Convert to fraction form
    16,840.16/23,240.08 = 9,388/x
  3. Step 3: Cross multiply
    16,840.16x = 23,240.08 × 9,388
  4. Step 4: Simplify right side
    16,840.16x = 218,177,871.04
  5. Step 5: Solve for x
    x = 218,177,871.04/16,840.16
  6. Step 6: Final answer
    x = 12,955.81

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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.