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Finding the Fourth Proportional to 9,569.80, 14,255.99 and 9,279.64

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Solution

The fourth proportional to 9,569.80, 14,255.99 and 9,279.64 is: 13,823.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,569.80 : 14,255.99 = 9,279.64 : x
  2. Step 2: Convert to fraction form
    9,569.80/14,255.99 = 9,279.64/x
  3. Step 3: Cross multiply
    9,569.80x = 14,255.99 × 9,279.64
  4. Step 4: Simplify right side
    9,569.80x = 132,290,455.04
  5. Step 5: Solve for x
    x = 132,290,455.04/9,569.80
  6. Step 6: Final answer
    x = 13,823.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.