Home / 11,224.34-15,486.16-6,507.68

Finding the Fourth Proportional to 11,224.34, 15,486.16 and 6,507.68

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Solution

The fourth proportional to 11,224.34, 15,486.16 and 6,507.68 is: 8,978.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,224.34 : 15,486.16 = 6,507.68 : x
  2. Step 2: Convert to fraction form
    11,224.34/15,486.16 = 6,507.68/x
  3. Step 3: Cross multiply
    11,224.34x = 15,486.16 × 6,507.68
  4. Step 4: Simplify right side
    11,224.34x = 100,778,941.17
  5. Step 5: Solve for x
    x = 100,778,941.17/11,224.34
  6. Step 6: Final answer
    x = 8,978.61

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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.