Home / 9,427.56-13,009.20-5,177.92

Finding the Fourth Proportional to 9,427.56, 13,009.20 and 5,177.92

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Solution

The fourth proportional to 9,427.56, 13,009.20 and 5,177.92 is: 7,145.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,427.56 : 13,009.20 = 5,177.92 : x
  2. Step 2: Convert to fraction form
    9,427.56/13,009.20 = 5,177.92/x
  3. Step 3: Cross multiply
    9,427.56x = 13,009.20 × 5,177.92
  4. Step 4: Simplify right side
    9,427.56x = 67,360,596.86
  5. Step 5: Solve for x
    x = 67,360,596.86/9,427.56
  6. Step 6: Final answer
    x = 7,145.07

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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.