Home / 13,148.93-18,147.06-7,484.60

Finding the Fourth Proportional to 13,148.93, 18,147.06 and 7,484.60

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Solution

The fourth proportional to 13,148.93, 18,147.06 and 7,484.60 is: 10,329.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.93 : 18,147.06 = 7,484.60 : x
  2. Step 2: Convert to fraction form
    13,148.93/18,147.06 = 7,484.60/x
  3. Step 3: Cross multiply
    13,148.93x = 18,147.06 × 7,484.60
  4. Step 4: Simplify right side
    13,148.93x = 135,823,394.54
  5. Step 5: Solve for x
    x = 135,823,394.54/13,148.93
  6. Step 6: Final answer
    x = 10,329.62

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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.