Home / 12,439.86-18,652.77-4,645.50

Finding the Fourth Proportional to 12,439.86, 18,652.77 and 4,645.50

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Solution

The fourth proportional to 12,439.86, 18,652.77 and 4,645.50 is: 6,965.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.86 : 18,652.77 = 4,645.50 : x
  2. Step 2: Convert to fraction form
    12,439.86/18,652.77 = 4,645.50/x
  3. Step 3: Cross multiply
    12,439.86x = 18,652.77 × 4,645.50
  4. Step 4: Simplify right side
    12,439.86x = 86,651,443.04
  5. Step 5: Solve for x
    x = 86,651,443.04/12,439.86
  6. Step 6: Final answer
    x = 6,965.63

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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.