Home / 19,120.16-28,682.06-7,434.29

Finding the Fourth Proportional to 19,120.16, 28,682.06 and 7,434.29

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Solution

The fourth proportional to 19,120.16, 28,682.06 and 7,434.29 is: 11,152.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.16 : 28,682.06 = 7,434.29 : x
  2. Step 2: Convert to fraction form
    19,120.16/28,682.06 = 7,434.29/x
  3. Step 3: Cross multiply
    19,120.16x = 28,682.06 × 7,434.29
  4. Step 4: Simplify right side
    19,120.16x = 213,230,751.84
  5. Step 5: Solve for x
    x = 213,230,751.84/19,120.16
  6. Step 6: Final answer
    x = 11,152.14

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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.