Home / 12,442.32-17,192.27-9,945.05

Finding the Fourth Proportional to 12,442.32, 17,192.27 and 9,945.05

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Solution

The fourth proportional to 12,442.32, 17,192.27 and 9,945.05 is: 13,741.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.32 : 17,192.27 = 9,945.05 : x
  2. Step 2: Convert to fraction form
    12,442.32/17,192.27 = 9,945.05/x
  3. Step 3: Cross multiply
    12,442.32x = 17,192.27 × 9,945.05
  4. Step 4: Simplify right side
    12,442.32x = 170,977,849.08
  5. Step 5: Solve for x
    x = 170,977,849.08/12,442.32
  6. Step 6: Final answer
    x = 13,741.64

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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.