Home / 8,862.56-13,289.45-5,165.72

Finding the Fourth Proportional to 8,862.56, 13,289.45 and 5,165.72

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Solution

The fourth proportional to 8,862.56, 13,289.45 and 5,165.72 is: 7,746.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.56 : 13,289.45 = 5,165.72 : x
  2. Step 2: Convert to fraction form
    8,862.56/13,289.45 = 5,165.72/x
  3. Step 3: Cross multiply
    8,862.56x = 13,289.45 × 5,165.72
  4. Step 4: Simplify right side
    8,862.56x = 68,649,485.38
  5. Step 5: Solve for x
    x = 68,649,485.38/8,862.56
  6. Step 6: Final answer
    x = 7,746.02

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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.