Home / 11,979.53-16,526.87-7,948.26

Finding the Fourth Proportional to 11,979.53, 16,526.87 and 7,948.26

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Solution

The fourth proportional to 11,979.53, 16,526.87 and 7,948.26 is: 10,965.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.53 : 16,526.87 = 7,948.26 : x
  2. Step 2: Convert to fraction form
    11,979.53/16,526.87 = 7,948.26/x
  3. Step 3: Cross multiply
    11,979.53x = 16,526.87 × 7,948.26
  4. Step 4: Simplify right side
    11,979.53x = 131,359,849.81
  5. Step 5: Solve for x
    x = 131,359,849.81/11,979.53
  6. Step 6: Final answer
    x = 10,965.36

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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.