Home / 8,301.28-11,461.08-5,161.72

Finding the Fourth Proportional to 8,301.28, 11,461.08 and 5,161.72

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Solution

The fourth proportional to 8,301.28, 11,461.08 and 5,161.72 is: 7,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,301.28 : 11,461.08 = 5,161.72 : x
  2. Step 2: Convert to fraction form
    8,301.28/11,461.08 = 5,161.72/x
  3. Step 3: Cross multiply
    8,301.28x = 11,461.08 × 5,161.72
  4. Step 4: Simplify right side
    8,301.28x = 59,158,885.86
  5. Step 5: Solve for x
    x = 59,158,885.86/8,301.28
  6. Step 6: Final answer
    x = 7,126.48

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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.