Home / 12,615.30-18,924.12-4,292.52

Finding the Fourth Proportional to 12,615.30, 18,924.12 and 4,292.52

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Solution

The fourth proportional to 12,615.30, 18,924.12 and 4,292.52 is: 6,439.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615.30 : 18,924.12 = 4,292.52 : x
  2. Step 2: Convert to fraction form
    12,615.30/18,924.12 = 4,292.52/x
  3. Step 3: Cross multiply
    12,615.30x = 18,924.12 × 4,292.52
  4. Step 4: Simplify right side
    12,615.30x = 81,232,163.58
  5. Step 5: Solve for x
    x = 81,232,163.58/12,615.30
  6. Step 6: Final answer
    x = 6,439.18

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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.