Home / 19,209.60-28,830.60-9,357.30

Finding the Fourth Proportional to 19,209.60, 28,830.60 and 9,357.30

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Solution

The fourth proportional to 19,209.60, 28,830.60 and 9,357.30 is: 14,043.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.60 : 28,830.60 = 9,357.30 : x
  2. Step 2: Convert to fraction form
    19,209.60/28,830.60 = 9,357.30/x
  3. Step 3: Cross multiply
    19,209.60x = 28,830.60 × 9,357.30
  4. Step 4: Simplify right side
    19,209.60x = 269,776,573.38
  5. Step 5: Solve for x
    x = 269,776,573.38/19,209.60
  6. Step 6: Final answer
    x = 14,043.84

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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.