Home / 13,325.80-18,389.60-7,357.88

Finding the Fourth Proportional to 13,325.80, 18,389.60 and 7,357.88

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Solution

The fourth proportional to 13,325.80, 18,389.60 and 7,357.88 is: 10,153.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.80 : 18,389.60 = 7,357.88 : x
  2. Step 2: Convert to fraction form
    13,325.80/18,389.60 = 7,357.88/x
  3. Step 3: Cross multiply
    13,325.80x = 18,389.60 × 7,357.88
  4. Step 4: Simplify right side
    13,325.80x = 135,308,470.05
  5. Step 5: Solve for x
    x = 135,308,470.05/13,325.80
  6. Step 6: Final answer
    x = 10,153.87

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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.