Home / 9,427.20-13,009.52-6,442.97

Finding the Fourth Proportional to 9,427.20, 13,009.52 and 6,442.97

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Solution

The fourth proportional to 9,427.20, 13,009.52 and 6,442.97 is: 8,891.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,427.20 : 13,009.52 = 6,442.97 : x
  2. Step 2: Convert to fraction form
    9,427.20/13,009.52 = 6,442.97/x
  3. Step 3: Cross multiply
    9,427.20x = 13,009.52 × 6,442.97
  4. Step 4: Simplify right side
    9,427.20x = 83,819,849.81
  5. Step 5: Solve for x
    x = 83,819,849.81/9,427.20
  6. Step 6: Final answer
    x = 8,891.28

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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.