Home / 13,848.47-20,749.07-7,613.70

Finding the Fourth Proportional to 13,848.47, 20,749.07 and 7,613.70

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Solution

The fourth proportional to 13,848.47, 20,749.07 and 7,613.70 is: 11,407.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,848.47 : 20,749.07 = 7,613.70 : x
  2. Step 2: Convert to fraction form
    13,848.47/20,749.07 = 7,613.70/x
  3. Step 3: Cross multiply
    13,848.47x = 20,749.07 × 7,613.70
  4. Step 4: Simplify right side
    13,848.47x = 157,977,156.19
  5. Step 5: Solve for x
    x = 157,977,156.19/13,848.47
  6. Step 6: Final answer
    x = 11,407.56

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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.