Home / 8,386.28-12,579.29-2,146.24

Finding the Fourth Proportional to 8,386.28, 12,579.29 and 2,146.24

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Solution

The fourth proportional to 8,386.28, 12,579.29 and 2,146.24 is: 3,219.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,386.28 : 12,579.29 = 2,146.24 : x
  2. Step 2: Convert to fraction form
    8,386.28/12,579.29 = 2,146.24/x
  3. Step 3: Cross multiply
    8,386.28x = 12,579.29 × 2,146.24
  4. Step 4: Simplify right side
    8,386.28x = 26,998,101.74
  5. Step 5: Solve for x
    x = 26,998,101.74/8,386.28
  6. Step 6: Final answer
    x = 3,219.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.