Home / 19,133.12-28,699.52-7,454.72

Finding the Fourth Proportional to 19,133.12, 28,699.52 and 7,454.72

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Solution

The fourth proportional to 19,133.12, 28,699.52 and 7,454.72 is: 11,182.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,133.12 : 28,699.52 = 7,454.72 : x
  2. Step 2: Convert to fraction form
    19,133.12/28,699.52 = 7,454.72/x
  3. Step 3: Cross multiply
    19,133.12x = 28,699.52 × 7,454.72
  4. Step 4: Simplify right side
    19,133.12x = 213,946,885.73
  5. Step 5: Solve for x
    x = 213,946,885.73/19,133.12
  6. Step 6: Final answer
    x = 11,182.02

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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.