Home / 13,373.05-18,455.84-7,405.27

Finding the Fourth Proportional to 13,373.05, 18,455.84 and 7,405.27

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Solution

The fourth proportional to 13,373.05, 18,455.84 and 7,405.27 is: 10,219.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,373.05 : 18,455.84 = 7,405.27 : x
  2. Step 2: Convert to fraction form
    13,373.05/18,455.84 = 7,405.27/x
  3. Step 3: Cross multiply
    13,373.05x = 18,455.84 × 7,405.27
  4. Step 4: Simplify right side
    13,373.05x = 136,670,478.28
  5. Step 5: Solve for x
    x = 136,670,478.28/13,373.05
  6. Step 6: Final answer
    x = 10,219.84

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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.