Home / 13,326.18-18,378.27-8,605.50

Finding the Fourth Proportional to 13,326.18, 18,378.27 and 8,605.50

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Solution

The fourth proportional to 13,326.18, 18,378.27 and 8,605.50 is: 11,867.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.18 : 18,378.27 = 8,605.50 : x
  2. Step 2: Convert to fraction form
    13,326.18/18,378.27 = 8,605.50/x
  3. Step 3: Cross multiply
    13,326.18x = 18,378.27 × 8,605.50
  4. Step 4: Simplify right side
    13,326.18x = 158,154,202.49
  5. Step 5: Solve for x
    x = 158,154,202.49/13,326.18
  6. Step 6: Final answer
    x = 11,867.93

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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.