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Finding the Fourth Proportional to 16,509.60, 24,715.80 and 10,969.20

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Solution

The fourth proportional to 16,509.60, 24,715.80 and 10,969.20 is: 16,421.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,509.60 : 24,715.80 = 10,969.20 : x
  2. Step 2: Convert to fraction form
    16,509.60/24,715.80 = 10,969.20/x
  3. Step 3: Cross multiply
    16,509.60x = 24,715.80 × 10,969.20
  4. Step 4: Simplify right side
    16,509.60x = 271,112,553.36
  5. Step 5: Solve for x
    x = 271,112,553.36/16,509.60
  6. Step 6: Final answer
    x = 16,421.51

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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.