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Finding the Fourth Proportional to 7,156.54, 9,874.37 and 6,210.66

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Solution

The fourth proportional to 7,156.54, 9,874.37 and 6,210.66 is: 8,569.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,156.54 : 9,874.37 = 6,210.66 : x
  2. Step 2: Convert to fraction form
    7,156.54/9,874.37 = 6,210.66/x
  3. Step 3: Cross multiply
    7,156.54x = 9,874.37 × 6,210.66
  4. Step 4: Simplify right side
    7,156.54x = 61,326,323.73
  5. Step 5: Solve for x
    x = 61,326,323.73/7,156.54
  6. Step 6: Final answer
    x = 8,569.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.