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Finding the Fourth Proportional to 8,254.40, 12,383.20 and 3,574.40

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Solution

The fourth proportional to 8,254.40, 12,383.20 and 3,574.40 is: 5,362.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.40 : 12,383.20 = 3,574.40 : x
  2. Step 2: Convert to fraction form
    8,254.40/12,383.20 = 3,574.40/x
  3. Step 3: Cross multiply
    8,254.40x = 12,383.20 × 3,574.40
  4. Step 4: Simplify right side
    8,254.40x = 44,262,510.08
  5. Step 5: Solve for x
    x = 44,262,510.08/8,254.40
  6. Step 6: Final answer
    x = 5,362.29

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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.