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Finding the Fourth Proportional to 10,904.10, 16,392.60 and 9,300.30

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Solution

The fourth proportional to 10,904.10, 16,392.60 and 9,300.30 is: 13,981.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,904.10 : 16,392.60 = 9,300.30 : x
  2. Step 2: Convert to fraction form
    10,904.10/16,392.60 = 9,300.30/x
  3. Step 3: Cross multiply
    10,904.10x = 16,392.60 × 9,300.30
  4. Step 4: Simplify right side
    10,904.10x = 152,456,097.78
  5. Step 5: Solve for x
    x = 152,456,097.78/10,904.10
  6. Step 6: Final answer
    x = 13,981.54

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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.