Home / 11,406.47-15,739.80-6,561.35

Finding the Fourth Proportional to 11,406.47, 15,739.80 and 6,561.35

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Solution

The fourth proportional to 11,406.47, 15,739.80 and 6,561.35 is: 9,054.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.47 : 15,739.80 = 6,561.35 : x
  2. Step 2: Convert to fraction form
    11,406.47/15,739.80 = 6,561.35/x
  3. Step 3: Cross multiply
    11,406.47x = 15,739.80 × 6,561.35
  4. Step 4: Simplify right side
    11,406.47x = 103,274,336.73
  5. Step 5: Solve for x
    x = 103,274,336.73/11,406.47
  6. Step 6: Final answer
    x = 9,054.02

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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.