Home / 16,787.28-25,172.64-9,769.68

Finding the Fourth Proportional to 16,787.28, 25,172.64 and 9,769.68

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Solution

The fourth proportional to 16,787.28, 25,172.64 and 9,769.68 is: 14,649.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,787.28 : 25,172.64 = 9,769.68 : x
  2. Step 2: Convert to fraction form
    16,787.28/25,172.64 = 9,769.68/x
  3. Step 3: Cross multiply
    16,787.28x = 25,172.64 × 9,769.68
  4. Step 4: Simplify right side
    16,787.28x = 245,928,637.56
  5. Step 5: Solve for x
    x = 245,928,637.56/16,787.28
  6. Step 6: Final answer
    x = 14,649.70

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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.