Home / 9,405.02-12,980.14-6,177.60

Finding the Fourth Proportional to 9,405.02, 12,980.14 and 6,177.60

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Solution

The fourth proportional to 9,405.02, 12,980.14 and 6,177.60 is: 8,525.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,405.02 : 12,980.14 = 6,177.60 : x
  2. Step 2: Convert to fraction form
    9,405.02/12,980.14 = 6,177.60/x
  3. Step 3: Cross multiply
    9,405.02x = 12,980.14 × 6,177.60
  4. Step 4: Simplify right side
    9,405.02x = 80,186,112.86
  5. Step 5: Solve for x
    x = 80,186,112.86/9,405.02
  6. Step 6: Final answer
    x = 8,525.88

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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.