Home / 14,787.24-20,403.42-9,411.84

Finding the Fourth Proportional to 14,787.24, 20,403.42 and 9,411.84

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Solution

The fourth proportional to 14,787.24, 20,403.42 and 9,411.84 is: 12,986.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.24 : 20,403.42 = 9,411.84 : x
  2. Step 2: Convert to fraction form
    14,787.24/20,403.42 = 9,411.84/x
  3. Step 3: Cross multiply
    14,787.24x = 20,403.42 × 9,411.84
  4. Step 4: Simplify right side
    14,787.24x = 192,033,724.49
  5. Step 5: Solve for x
    x = 192,033,724.49/14,787.24
  6. Step 6: Final answer
    x = 12,986.45

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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.