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Finding the Fourth Proportional to 9,718, 14,574.58 and 4,170.72

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Solution

The fourth proportional to 9,718, 14,574.58 and 4,170.72 is: 6,255.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,718 : 14,574.58 = 4,170.72 : x
  2. Step 2: Convert to fraction form
    9,718/14,574.58 = 4,170.72/x
  3. Step 3: Cross multiply
    9,718x = 14,574.58 × 4,170.72
  4. Step 4: Simplify right side
    9,718x = 60,786,492.30
  5. Step 5: Solve for x
    x = 60,786,492.30/9,718
  6. Step 6: Final answer
    x = 6,255.04

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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.