Home / 19,168.72-28,742.66-6,685.40

Finding the Fourth Proportional to 19,168.72, 28,742.66 and 6,685.40

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Solution

The fourth proportional to 19,168.72, 28,742.66 and 6,685.40 is: 10,024.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,168.72 : 28,742.66 = 6,685.40 : x
  2. Step 2: Convert to fraction form
    19,168.72/28,742.66 = 6,685.40/x
  3. Step 3: Cross multiply
    19,168.72x = 28,742.66 × 6,685.40
  4. Step 4: Simplify right side
    19,168.72x = 192,156,179.16
  5. Step 5: Solve for x
    x = 192,156,179.16/19,168.72
  6. Step 6: Final answer
    x = 10,024.47

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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.