Home / 12,087.32-18,120.45-9,743.18

Finding the Fourth Proportional to 12,087.32, 18,120.45 and 9,743.18

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Solution

The fourth proportional to 12,087.32, 18,120.45 and 9,743.18 is: 14,606.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.32 : 18,120.45 = 9,743.18 : x
  2. Step 2: Convert to fraction form
    12,087.32/18,120.45 = 9,743.18/x
  3. Step 3: Cross multiply
    12,087.32x = 18,120.45 × 9,743.18
  4. Step 4: Simplify right side
    12,087.32x = 176,550,806.03
  5. Step 5: Solve for x
    x = 176,550,806.03/12,087.32
  6. Step 6: Final answer
    x = 14,606.28

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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.