Home / 14,986.40-22,479.60-10,320.80

Finding the Fourth Proportional to 14,986.40, 22,479.60 and 10,320.80

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Solution

The fourth proportional to 14,986.40, 22,479.60 and 10,320.80 is: 15,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.40 : 22,479.60 = 10,320.80 : x
  2. Step 2: Convert to fraction form
    14,986.40/22,479.60 = 10,320.80/x
  3. Step 3: Cross multiply
    14,986.40x = 22,479.60 × 10,320.80
  4. Step 4: Simplify right side
    14,986.40x = 232,007,455.68
  5. Step 5: Solve for x
    x = 232,007,455.68/14,986.40
  6. Step 6: Final answer
    x = 15,481.20

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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.