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Finding the Fourth Proportional to 9,890.88, 14,824.78 and 8,045.30

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Solution

The fourth proportional to 9,890.88, 14,824.78 and 8,045.30 is: 12,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890.88 : 14,824.78 = 8,045.30 : x
  2. Step 2: Convert to fraction form
    9,890.88/14,824.78 = 8,045.30/x
  3. Step 3: Cross multiply
    9,890.88x = 14,824.78 × 8,045.30
  4. Step 4: Simplify right side
    9,890.88x = 119,269,802.53
  5. Step 5: Solve for x
    x = 119,269,802.53/9,890.88
  6. Step 6: Final answer
    x = 12,058.56

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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.