Home / 19,297.12-28,947.57-9,911.38

Finding the Fourth Proportional to 19,297.12, 28,947.57 and 9,911.38

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Solution

The fourth proportional to 19,297.12, 28,947.57 and 9,911.38 is: 14,868.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,297.12 : 28,947.57 = 9,911.38 : x
  2. Step 2: Convert to fraction form
    19,297.12/28,947.57 = 9,911.38/x
  3. Step 3: Cross multiply
    19,297.12x = 28,947.57 × 9,911.38
  4. Step 4: Simplify right side
    19,297.12x = 286,910,366.35
  5. Step 5: Solve for x
    x = 286,910,366.35/19,297.12
  6. Step 6: Final answer
    x = 14,868.04

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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.