Home / 14,787.02-20,406.14-8,072.79

Finding the Fourth Proportional to 14,787.02, 20,406.14 and 8,072.79

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Solution

The fourth proportional to 14,787.02, 20,406.14 and 8,072.79 is: 11,140.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.02 : 20,406.14 = 8,072.79 : x
  2. Step 2: Convert to fraction form
    14,787.02/20,406.14 = 8,072.79/x
  3. Step 3: Cross multiply
    14,787.02x = 20,406.14 × 8,072.79
  4. Step 4: Simplify right side
    14,787.02x = 164,734,482.93
  5. Step 5: Solve for x
    x = 164,734,482.93/14,787.02
  6. Step 6: Final answer
    x = 11,140.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.