Home / 14,216.50-19,618.77-7,928.88

Finding the Fourth Proportional to 14,216.50, 19,618.77 and 7,928.88

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Solution

The fourth proportional to 14,216.50, 19,618.77 and 7,928.88 is: 10,941.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,216.50 : 19,618.77 = 7,928.88 : x
  2. Step 2: Convert to fraction form
    14,216.50/19,618.77 = 7,928.88/x
  3. Step 3: Cross multiply
    14,216.50x = 19,618.77 × 7,928.88
  4. Step 4: Simplify right side
    14,216.50x = 155,554,873.08
  5. Step 5: Solve for x
    x = 155,554,873.08/14,216.50
  6. Step 6: Final answer
    x = 10,941.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.