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Finding the Fourth Proportional to 9,895.40, 14,825.10 and 4,689.80

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Solution

The fourth proportional to 9,895.40, 14,825.10 and 4,689.80 is: 7,026.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,895.40 : 14,825.10 = 4,689.80 : x
  2. Step 2: Convert to fraction form
    9,895.40/14,825.10 = 4,689.80/x
  3. Step 3: Cross multiply
    9,895.40x = 14,825.10 × 4,689.80
  4. Step 4: Simplify right side
    9,895.40x = 69,526,753.98
  5. Step 5: Solve for x
    x = 69,526,753.98/9,895.40
  6. Step 6: Final answer
    x = 7,026.17

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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.