Home / 12,615.15-18,925.61-4,295.31

Finding the Fourth Proportional to 12,615.15, 18,925.61 and 4,295.31

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Solution

The fourth proportional to 12,615.15, 18,925.61 and 4,295.31 is: 6,443.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615.15 : 18,925.61 = 4,295.31 : x
  2. Step 2: Convert to fraction form
    12,615.15/18,925.61 = 4,295.31/x
  3. Step 3: Cross multiply
    12,615.15x = 18,925.61 × 4,295.31
  4. Step 4: Simplify right side
    12,615.15x = 81,291,340.41
  5. Step 5: Solve for x
    x = 81,291,340.41/12,615.15
  6. Step 6: Final answer
    x = 6,443.95

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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.