Home / 9,341.28-13,996.80-7,140.96

Finding the Fourth Proportional to 9,341.28, 13,996.80 and 7,140.96

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Solution

The fourth proportional to 9,341.28, 13,996.80 and 7,140.96 is: 10,699.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,341.28 : 13,996.80 = 7,140.96 : x
  2. Step 2: Convert to fraction form
    9,341.28/13,996.80 = 7,140.96/x
  3. Step 3: Cross multiply
    9,341.28x = 13,996.80 × 7,140.96
  4. Step 4: Simplify right side
    9,341.28x = 99,950,588.93
  5. Step 5: Solve for x
    x = 99,950,588.93/9,341.28
  6. Step 6: Final answer
    x = 10,699.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.