Home / 11,279.05-15,564.49-6,242.99

Finding the Fourth Proportional to 11,279.05, 15,564.49 and 6,242.99

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Solution

The fourth proportional to 11,279.05, 15,564.49 and 6,242.99 is: 8,614.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.05 : 15,564.49 = 6,242.99 : x
  2. Step 2: Convert to fraction form
    11,279.05/15,564.49 = 6,242.99/x
  3. Step 3: Cross multiply
    11,279.05x = 15,564.49 × 6,242.99
  4. Step 4: Simplify right side
    11,279.05x = 97,168,924.21
  5. Step 5: Solve for x
    x = 97,168,924.21/11,279.05
  6. Step 6: Final answer
    x = 8,614.99

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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.