Home / 12,436.16-18,619.37-9,330.62

Finding the Fourth Proportional to 12,436.16, 18,619.37 and 9,330.62

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Solution

The fourth proportional to 12,436.16, 18,619.37 and 9,330.62 is: 13,969.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.16 : 18,619.37 = 9,330.62 : x
  2. Step 2: Convert to fraction form
    12,436.16/18,619.37 = 9,330.62/x
  3. Step 3: Cross multiply
    12,436.16x = 18,619.37 × 9,330.62
  4. Step 4: Simplify right side
    12,436.16x = 173,730,219.46
  5. Step 5: Solve for x
    x = 173,730,219.46/12,436.16
  6. Step 6: Final answer
    x = 13,969.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.