Home / 19,200.84-28,813.40-7,513.75

Finding the Fourth Proportional to 19,200.84, 28,813.40 and 7,513.75

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Solution

The fourth proportional to 19,200.84, 28,813.40 and 7,513.75 is: 11,275.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200.84 : 28,813.40 = 7,513.75 : x
  2. Step 2: Convert to fraction form
    19,200.84/28,813.40 = 7,513.75/x
  3. Step 3: Cross multiply
    19,200.84x = 28,813.40 × 7,513.75
  4. Step 4: Simplify right side
    19,200.84x = 216,496,684.25
  5. Step 5: Solve for x
    x = 216,496,684.25/19,200.84
  6. Step 6: Final answer
    x = 11,275.38

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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.