Home / 13,178.73-18,186.71-7,210.50

Finding the Fourth Proportional to 13,178.73, 18,186.71 and 7,210.50

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Solution

The fourth proportional to 13,178.73, 18,186.71 and 7,210.50 is: 9,950.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178.73 : 18,186.71 = 7,210.50 : x
  2. Step 2: Convert to fraction form
    13,178.73/18,186.71 = 7,210.50/x
  3. Step 3: Cross multiply
    13,178.73x = 18,186.71 × 7,210.50
  4. Step 4: Simplify right side
    13,178.73x = 131,135,236.40
  5. Step 5: Solve for x
    x = 131,135,236.40/13,178.73
  6. Step 6: Final answer
    x = 9,950.52

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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.