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Finding the Fourth Proportional to 13,148.48, 19,722.72 and 7,004.48

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Solution

The fourth proportional to 13,148.48, 19,722.72 and 7,004.48 is: 10,506.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.48 : 19,722.72 = 7,004.48 : x
  2. Step 2: Convert to fraction form
    13,148.48/19,722.72 = 7,004.48/x
  3. Step 3: Cross multiply
    13,148.48x = 19,722.72 × 7,004.48
  4. Step 4: Simplify right side
    13,148.48x = 138,147,397.79
  5. Step 5: Solve for x
    x = 138,147,397.79/13,148.48
  6. Step 6: Final answer
    x = 10,506.72

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Similar ratio
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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.