Home / 8,574.21-12,862.86-3,030.77

Finding the Fourth Proportional to 8,574.21, 12,862.86 and 3,030.77

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Solution

The fourth proportional to 8,574.21, 12,862.86 and 3,030.77 is: 4,546.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.21 : 12,862.86 = 3,030.77 : x
  2. Step 2: Convert to fraction form
    8,574.21/12,862.86 = 3,030.77/x
  3. Step 3: Cross multiply
    8,574.21x = 12,862.86 × 3,030.77
  4. Step 4: Simplify right side
    8,574.21x = 38,984,390.99
  5. Step 5: Solve for x
    x = 38,984,390.99/8,574.21
  6. Step 6: Final answer
    x = 4,546.70

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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.