Home / 11,842.38-16,345.35-7,125.75

Finding the Fourth Proportional to 11,842.38, 16,345.35 and 7,125.75

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Solution

The fourth proportional to 11,842.38, 16,345.35 and 7,125.75 is: 9,835.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,842.38 : 16,345.35 = 7,125.75 : x
  2. Step 2: Convert to fraction form
    11,842.38/16,345.35 = 7,125.75/x
  3. Step 3: Cross multiply
    11,842.38x = 16,345.35 × 7,125.75
  4. Step 4: Simplify right side
    11,842.38x = 116,472,877.76
  5. Step 5: Solve for x
    x = 116,472,877.76/11,842.38
  6. Step 6: Final answer
    x = 9,835.26

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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.