Home / 11,944.40-16,428.47-9,581.36

Finding the Fourth Proportional to 11,944.40, 16,428.47 and 9,581.36

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Solution

The fourth proportional to 11,944.40, 16,428.47 and 9,581.36 is: 13,178.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,944.40 : 16,428.47 = 9,581.36 : x
  2. Step 2: Convert to fraction form
    11,944.40/16,428.47 = 9,581.36/x
  3. Step 3: Cross multiply
    11,944.40x = 16,428.47 × 9,581.36
  4. Step 4: Simplify right side
    11,944.40x = 157,406,955.27
  5. Step 5: Solve for x
    x = 157,406,955.27/11,944.40
  6. Step 6: Final answer
    x = 13,178.31

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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.