Home / 13,187.41-18,197.92-7,217.93

Finding the Fourth Proportional to 13,187.41, 18,197.92 and 7,217.93

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Solution

The fourth proportional to 13,187.41, 18,197.92 and 7,217.93 is: 9,960.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.41 : 18,197.92 = 7,217.93 : x
  2. Step 2: Convert to fraction form
    13,187.41/18,197.92 = 7,217.93/x
  3. Step 3: Cross multiply
    13,187.41x = 18,197.92 × 7,217.93
  4. Step 4: Simplify right side
    13,187.41x = 131,351,312.71
  5. Step 5: Solve for x
    x = 131,351,312.71/13,187.41
  6. Step 6: Final answer
    x = 9,960.36

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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.