Home / 15,397.37-21,246.56-8,682.60

Finding the Fourth Proportional to 15,397.37, 21,246.56 and 8,682.60

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Solution

The fourth proportional to 15,397.37, 21,246.56 and 8,682.60 is: 11,980.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,397.37 : 21,246.56 = 8,682.60 : x
  2. Step 2: Convert to fraction form
    15,397.37/21,246.56 = 8,682.60/x
  3. Step 3: Cross multiply
    15,397.37x = 21,246.56 × 8,682.60
  4. Step 4: Simplify right side
    15,397.37x = 184,475,381.86
  5. Step 5: Solve for x
    x = 184,475,381.86/15,397.37
  6. Step 6: Final answer
    x = 11,980.97

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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.