Home / 13,177.89-18,185.99-7,210.08

Finding the Fourth Proportional to 13,177.89, 18,185.99 and 7,210.08

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Solution

The fourth proportional to 13,177.89, 18,185.99 and 7,210.08 is: 9,950.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.89 : 18,185.99 = 7,210.08 : x
  2. Step 2: Convert to fraction form
    13,177.89/18,185.99 = 7,210.08/x
  3. Step 3: Cross multiply
    13,177.89x = 18,185.99 × 7,210.08
  4. Step 4: Simplify right side
    13,177.89x = 131,122,406.73
  5. Step 5: Solve for x
    x = 131,122,406.73/13,177.89
  6. Step 6: Final answer
    x = 9,950.18

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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.