Home / 16,905.04-23,321.11-10,938.64

Finding the Fourth Proportional to 16,905.04, 23,321.11 and 10,938.64

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Solution

The fourth proportional to 16,905.04, 23,321.11 and 10,938.64 is: 15,090.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.04 : 23,321.11 = 10,938.64 : x
  2. Step 2: Convert to fraction form
    16,905.04/23,321.11 = 10,938.64/x
  3. Step 3: Cross multiply
    16,905.04x = 23,321.11 × 10,938.64
  4. Step 4: Simplify right side
    16,905.04x = 255,101,055.39
  5. Step 5: Solve for x
    x = 255,101,055.39/16,905.04
  6. Step 6: Final answer
    x = 15,090.24

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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.