Home / 19,207.68-28,799.64-7,515.60

Finding the Fourth Proportional to 19,207.68, 28,799.64 and 7,515.60

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Solution

The fourth proportional to 19,207.68, 28,799.64 and 7,515.60 is: 11,268.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,207.68 : 28,799.64 = 7,515.60 : x
  2. Step 2: Convert to fraction form
    19,207.68/28,799.64 = 7,515.60/x
  3. Step 3: Cross multiply
    19,207.68x = 28,799.64 × 7,515.60
  4. Step 4: Simplify right side
    19,207.68x = 216,446,574.38
  5. Step 5: Solve for x
    x = 216,446,574.38/19,207.68
  6. Step 6: Final answer
    x = 11,268.75

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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.