Home / 14,787.77-20,408.96-9,480.65

Finding the Fourth Proportional to 14,787.77, 20,408.96 and 9,480.65

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Solution

The fourth proportional to 14,787.77, 20,408.96 and 9,480.65 is: 13,084.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.77 : 20,408.96 = 9,480.65 : x
  2. Step 2: Convert to fraction form
    14,787.77/20,408.96 = 9,480.65/x
  3. Step 3: Cross multiply
    14,787.77x = 20,408.96 × 9,480.65
  4. Step 4: Simplify right side
    14,787.77x = 193,490,128.28
  5. Step 5: Solve for x
    x = 193,490,128.28/14,787.77
  6. Step 6: Final answer
    x = 13,084.47

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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.