Home / 19,118.16-28,677.22-7,434.11

Finding the Fourth Proportional to 19,118.16, 28,677.22 and 7,434.11

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Solution

The fourth proportional to 19,118.16, 28,677.22 and 7,434.11 is: 11,151.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.16 : 28,677.22 = 7,434.11 : x
  2. Step 2: Convert to fraction form
    19,118.16/28,677.22 = 7,434.11/x
  3. Step 3: Cross multiply
    19,118.16x = 28,677.22 × 7,434.11
  4. Step 4: Simplify right side
    19,118.16x = 213,189,661.08
  5. Step 5: Solve for x
    x = 213,189,661.08/19,118.16
  6. Step 6: Final answer
    x = 11,151.16

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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.