Home / 19,209.44-28,772.40-9,327.92

Finding the Fourth Proportional to 19,209.44, 28,772.40 and 9,327.92

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Solution

The fourth proportional to 19,209.44, 28,772.40 and 9,327.92 is: 13,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.44 : 28,772.40 = 9,327.92 : x
  2. Step 2: Convert to fraction form
    19,209.44/28,772.40 = 9,327.92/x
  3. Step 3: Cross multiply
    19,209.44x = 28,772.40 × 9,327.92
  4. Step 4: Simplify right side
    19,209.44x = 268,386,645.41
  5. Step 5: Solve for x
    x = 268,386,645.41/19,209.44
  6. Step 6: Final answer
    x = 13,971.60

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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.