Home / 19,184.23-28,774.34-5,145.76

Finding the Fourth Proportional to 19,184.23, 28,774.34 and 5,145.76

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Solution

The fourth proportional to 19,184.23, 28,774.34 and 5,145.76 is: 7,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,184.23 : 28,774.34 = 5,145.76 : x
  2. Step 2: Convert to fraction form
    19,184.23/28,774.34 = 5,145.76/x
  3. Step 3: Cross multiply
    19,184.23x = 28,774.34 × 5,145.76
  4. Step 4: Simplify right side
    19,184.23x = 148,065,906.28
  5. Step 5: Solve for x
    x = 148,065,906.28/19,184.23
  6. Step 6: Final answer
    x = 7,718.10

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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.