Home / 13,048.81-18,007.20-7,383.46

Finding the Fourth Proportional to 13,048.81, 18,007.20 and 7,383.46

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Solution

The fourth proportional to 13,048.81, 18,007.20 and 7,383.46 is: 10,189.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,048.81 : 18,007.20 = 7,383.46 : x
  2. Step 2: Convert to fraction form
    13,048.81/18,007.20 = 7,383.46/x
  3. Step 3: Cross multiply
    13,048.81x = 18,007.20 × 7,383.46
  4. Step 4: Simplify right side
    13,048.81x = 132,955,440.91
  5. Step 5: Solve for x
    x = 132,955,440.91/13,048.81
  6. Step 6: Final answer
    x = 10,189.09

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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.