Home / 13,357.58-18,433.74-7,389.66

Finding the Fourth Proportional to 13,357.58, 18,433.74 and 7,389.66

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Solution

The fourth proportional to 13,357.58, 18,433.74 and 7,389.66 is: 10,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.58 : 18,433.74 = 7,389.66 : x
  2. Step 2: Convert to fraction form
    13,357.58/18,433.74 = 7,389.66/x
  3. Step 3: Cross multiply
    13,357.58x = 18,433.74 × 7,389.66
  4. Step 4: Simplify right side
    13,357.58x = 136,219,167.97
  5. Step 5: Solve for x
    x = 136,219,167.97/13,357.58
  6. Step 6: Final answer
    x = 10,197.90

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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.