Home / 13,373.83-18,455.64-7,405.48

Finding the Fourth Proportional to 13,373.83, 18,455.64 and 7,405.48

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Solution

The fourth proportional to 13,373.83, 18,455.64 and 7,405.48 is: 10,219.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,373.83 : 18,455.64 = 7,405.48 : x
  2. Step 2: Convert to fraction form
    13,373.83/18,455.64 = 7,405.48/x
  3. Step 3: Cross multiply
    13,373.83x = 18,455.64 × 7,405.48
  4. Step 4: Simplify right side
    13,373.83x = 136,672,872.91
  5. Step 5: Solve for x
    x = 136,672,872.91/13,373.83
  6. Step 6: Final answer
    x = 10,219.43

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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.