Home / 15,188.16-20,960.19-8,814.26

Finding the Fourth Proportional to 15,188.16, 20,960.19 and 8,814.26

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Solution

The fourth proportional to 15,188.16, 20,960.19 and 8,814.26 is: 12,163.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188.16 : 20,960.19 = 8,814.26 : x
  2. Step 2: Convert to fraction form
    15,188.16/20,960.19 = 8,814.26/x
  3. Step 3: Cross multiply
    15,188.16x = 20,960.19 × 8,814.26
  4. Step 4: Simplify right side
    15,188.16x = 184,748,564.31
  5. Step 5: Solve for x
    x = 184,748,564.31/15,188.16
  6. Step 6: Final answer
    x = 12,163.99

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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.