Home / 9,137.18-13,706.15-2,897.06

Finding the Fourth Proportional to 9,137.18, 13,706.15 and 2,897.06

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Solution

The fourth proportional to 9,137.18, 13,706.15 and 2,897.06 is: 4,345.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,137.18 : 13,706.15 = 2,897.06 : x
  2. Step 2: Convert to fraction form
    9,137.18/13,706.15 = 2,897.06/x
  3. Step 3: Cross multiply
    9,137.18x = 13,706.15 × 2,897.06
  4. Step 4: Simplify right side
    9,137.18x = 39,707,455.90
  5. Step 5: Solve for x
    x = 39,707,455.90/9,137.18
  6. Step 6: Final answer
    x = 4,345.70

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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.