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Finding the Fourth Proportional to 12,671.68, 19,014.88 and 5,746.88

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Solution

The fourth proportional to 12,671.68, 19,014.88 and 5,746.88 is: 8,623.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671.68 : 19,014.88 = 5,746.88 : x
  2. Step 2: Convert to fraction form
    12,671.68/19,014.88 = 5,746.88/x
  3. Step 3: Cross multiply
    12,671.68x = 19,014.88 × 5,746.88
  4. Step 4: Simplify right side
    12,671.68x = 109,276,233.57
  5. Step 5: Solve for x
    x = 109,276,233.57/12,671.68
  6. Step 6: Final answer
    x = 8,623.66

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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.