Home / 14,216.77-19,619.18-7,929.55

Finding the Fourth Proportional to 14,216.77, 19,619.18 and 7,929.55

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Solution

The fourth proportional to 14,216.77, 19,619.18 and 7,929.55 is: 10,942.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,216.77 : 19,619.18 = 7,929.55 : x
  2. Step 2: Convert to fraction form
    14,216.77/19,619.18 = 7,929.55/x
  3. Step 3: Cross multiply
    14,216.77x = 19,619.18 × 7,929.55
  4. Step 4: Simplify right side
    14,216.77x = 155,571,268.77
  5. Step 5: Solve for x
    x = 155,571,268.77/14,216.77
  6. Step 6: Final answer
    x = 10,942.80

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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.