Home / 11,428.08-15,775.92-6,712.74

Finding the Fourth Proportional to 11,428.08, 15,775.92 and 6,712.74

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Solution

The fourth proportional to 11,428.08, 15,775.92 and 6,712.74 is: 9,266.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.08 : 15,775.92 = 6,712.74 : x
  2. Step 2: Convert to fraction form
    11,428.08/15,775.92 = 6,712.74/x
  3. Step 3: Cross multiply
    11,428.08x = 15,775.92 × 6,712.74
  4. Step 4: Simplify right side
    11,428.08x = 105,899,649.22
  5. Step 5: Solve for x
    x = 105,899,649.22/11,428.08
  6. Step 6: Final answer
    x = 9,266.62

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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.