Home / 9,740.40-13,431.96-5,761.68

Finding the Fourth Proportional to 9,740.40, 13,431.96 and 5,761.68

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Solution

The fourth proportional to 9,740.40, 13,431.96 and 5,761.68 is: 7,945.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,740.40 : 13,431.96 = 5,761.68 : x
  2. Step 2: Convert to fraction form
    9,740.40/13,431.96 = 5,761.68/x
  3. Step 3: Cross multiply
    9,740.40x = 13,431.96 × 5,761.68
  4. Step 4: Simplify right side
    9,740.40x = 77,390,655.29
  5. Step 5: Solve for x
    x = 77,390,655.29/9,740.40
  6. Step 6: Final answer
    x = 7,945.33

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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.