Home / 11,534.35-15,918.90-6,499.54

Finding the Fourth Proportional to 11,534.35, 15,918.90 and 6,499.54

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Solution

The fourth proportional to 11,534.35, 15,918.90 and 6,499.54 is: 8,970.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,534.35 : 15,918.90 = 6,499.54 : x
  2. Step 2: Convert to fraction form
    11,534.35/15,918.90 = 6,499.54/x
  3. Step 3: Cross multiply
    11,534.35x = 15,918.90 × 6,499.54
  4. Step 4: Simplify right side
    11,534.35x = 103,465,527.31
  5. Step 5: Solve for x
    x = 103,465,527.31/11,534.35
  6. Step 6: Final answer
    x = 8,970.21

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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.