Home / 13,250.32-18,284.70-7,942.48

Finding the Fourth Proportional to 13,250.32, 18,284.70 and 7,942.48

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Solution

The fourth proportional to 13,250.32, 18,284.70 and 7,942.48 is: 10,960.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.32 : 18,284.70 = 7,942.48 : x
  2. Step 2: Convert to fraction form
    13,250.32/18,284.70 = 7,942.48/x
  3. Step 3: Cross multiply
    13,250.32x = 18,284.70 × 7,942.48
  4. Step 4: Simplify right side
    13,250.32x = 145,225,864.06
  5. Step 5: Solve for x
    x = 145,225,864.06/13,250.32
  6. Step 6: Final answer
    x = 10,960.18

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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.