Home / 11,405.72-15,740.35-6,560.44

Finding the Fourth Proportional to 11,405.72, 15,740.35 and 6,560.44

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Solution

The fourth proportional to 11,405.72, 15,740.35 and 6,560.44 is: 9,053.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,405.72 : 15,740.35 = 6,560.44 : x
  2. Step 2: Convert to fraction form
    11,405.72/15,740.35 = 6,560.44/x
  3. Step 3: Cross multiply
    11,405.72x = 15,740.35 × 6,560.44
  4. Step 4: Simplify right side
    11,405.72x = 103,263,588.95
  5. Step 5: Solve for x
    x = 103,263,588.95/11,405.72
  6. Step 6: Final answer
    x = 9,053.66

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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.