Home / 13,347.30-18,419.46-7,378.98

Finding the Fourth Proportional to 13,347.30, 18,419.46 and 7,378.98

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Solution

The fourth proportional to 13,347.30, 18,419.46 and 7,378.98 is: 10,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.30 : 18,419.46 = 7,378.98 : x
  2. Step 2: Convert to fraction form
    13,347.30/18,419.46 = 7,378.98/x
  3. Step 3: Cross multiply
    13,347.30x = 18,419.46 × 7,378.98
  4. Step 4: Simplify right side
    13,347.30x = 135,916,826.95
  5. Step 5: Solve for x
    x = 135,916,826.95/13,347.30
  6. Step 6: Final answer
    x = 10,183.10

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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.