Home / 10,345.42-14,291.09-9,961.37

Finding the Fourth Proportional to 10,345.42, 14,291.09 and 9,961.37

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Solution

The fourth proportional to 10,345.42, 14,291.09 and 9,961.37 is: 13,760.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.42 : 14,291.09 = 9,961.37 : x
  2. Step 2: Convert to fraction form
    10,345.42/14,291.09 = 9,961.37/x
  3. Step 3: Cross multiply
    10,345.42x = 14,291.09 × 9,961.37
  4. Step 4: Simplify right side
    10,345.42x = 142,358,750.07
  5. Step 5: Solve for x
    x = 142,358,750.07/10,345.42
  6. Step 6: Final answer
    x = 13,760.56

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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.