Home / 13,280.80-19,922.64-4,964.80

Finding the Fourth Proportional to 13,280.80, 19,922.64 and 4,964.80

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Solution

The fourth proportional to 13,280.80, 19,922.64 and 4,964.80 is: 7,447.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.80 : 19,922.64 = 4,964.80 : x
  2. Step 2: Convert to fraction form
    13,280.80/19,922.64 = 4,964.80/x
  3. Step 3: Cross multiply
    13,280.80x = 19,922.64 × 4,964.80
  4. Step 4: Simplify right side
    13,280.80x = 98,911,923.07
  5. Step 5: Solve for x
    x = 98,911,923.07/13,280.80
  6. Step 6: Final answer
    x = 7,447.74

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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.