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Finding the Fourth Proportional to 9,423.60, 14,111.10 and 7,479.60

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Solution

The fourth proportional to 9,423.60, 14,111.10 and 7,479.60 is: 11,200.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,423.60 : 14,111.10 = 7,479.60 : x
  2. Step 2: Convert to fraction form
    9,423.60/14,111.10 = 7,479.60/x
  3. Step 3: Cross multiply
    9,423.60x = 14,111.10 × 7,479.60
  4. Step 4: Simplify right side
    9,423.60x = 105,545,383.56
  5. Step 5: Solve for x
    x = 105,545,383.56/9,423.60
  6. Step 6: Final answer
    x = 11,200.11

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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.