Home / 11,442.37-15,790.47-6,406.60

Finding the Fourth Proportional to 11,442.37, 15,790.47 and 6,406.60

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Solution

The fourth proportional to 11,442.37, 15,790.47 and 6,406.60 is: 8,841.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,442.37 : 15,790.47 = 6,406.60 : x
  2. Step 2: Convert to fraction form
    11,442.37/15,790.47 = 6,406.60/x
  3. Step 3: Cross multiply
    11,442.37x = 15,790.47 × 6,406.60
  4. Step 4: Simplify right side
    11,442.37x = 101,163,225.10
  5. Step 5: Solve for x
    x = 101,163,225.10/11,442.37
  6. Step 6: Final answer
    x = 8,841.11

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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.