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Finding the Fourth Proportional to 10,630.80, 14,668.80 and 6,153.68

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Solution

The fourth proportional to 10,630.80, 14,668.80 and 6,153.68 is: 8,491.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,630.80 : 14,668.80 = 6,153.68 : x
  2. Step 2: Convert to fraction form
    10,630.80/14,668.80 = 6,153.68/x
  3. Step 3: Cross multiply
    10,630.80x = 14,668.80 × 6,153.68
  4. Step 4: Simplify right side
    10,630.80x = 90,267,101.18
  5. Step 5: Solve for x
    x = 90,267,101.18/10,630.80
  6. Step 6: Final answer
    x = 8,491.09

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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.