Home / 11,405.85-15,740.52-6,560.57

Finding the Fourth Proportional to 11,405.85, 15,740.52 and 6,560.57

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Solution

The fourth proportional to 11,405.85, 15,740.52 and 6,560.57 is: 9,053.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,405.85 : 15,740.52 = 6,560.57 : x
  2. Step 2: Convert to fraction form
    11,405.85/15,740.52 = 6,560.57/x
  3. Step 3: Cross multiply
    11,405.85x = 15,740.52 × 6,560.57
  4. Step 4: Simplify right side
    11,405.85x = 103,266,688.19
  5. Step 5: Solve for x
    x = 103,266,688.19/11,405.85
  6. Step 6: Final answer
    x = 9,053.84

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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.