Home / 11,315.24-15,614.37-6,279.10

Finding the Fourth Proportional to 11,315.24, 15,614.37 and 6,279.10

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Solution

The fourth proportional to 11,315.24, 15,614.37 and 6,279.10 is: 8,664.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.24 : 15,614.37 = 6,279.10 : x
  2. Step 2: Convert to fraction form
    11,315.24/15,614.37 = 6,279.10/x
  3. Step 3: Cross multiply
    11,315.24x = 15,614.37 × 6,279.10
  4. Step 4: Simplify right side
    11,315.24x = 98,044,151.63
  5. Step 5: Solve for x
    x = 98,044,151.63/11,315.24
  6. Step 6: Final answer
    x = 8,664.79

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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.