Home / 9,317.60-12,858.30-5,125.86

Finding the Fourth Proportional to 9,317.60, 12,858.30 and 5,125.86

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Solution

The fourth proportional to 9,317.60, 12,858.30 and 5,125.86 is: 7,073.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,317.60 : 12,858.30 = 5,125.86 : x
  2. Step 2: Convert to fraction form
    9,317.60/12,858.30 = 5,125.86/x
  3. Step 3: Cross multiply
    9,317.60x = 12,858.30 × 5,125.86
  4. Step 4: Simplify right side
    9,317.60x = 65,909,845.64
  5. Step 5: Solve for x
    x = 65,909,845.64/9,317.60
  6. Step 6: Final answer
    x = 7,073.69

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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.