Home / 13,454.04-18,568.96-7,787.84

Finding the Fourth Proportional to 13,454.04, 18,568.96 and 7,787.84

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Solution

The fourth proportional to 13,454.04, 18,568.96 and 7,787.84 is: 10,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,454.04 : 18,568.96 = 7,787.84 : x
  2. Step 2: Convert to fraction form
    13,454.04/18,568.96 = 7,787.84/x
  3. Step 3: Cross multiply
    13,454.04x = 18,568.96 × 7,787.84
  4. Step 4: Simplify right side
    13,454.04x = 144,612,089.45
  5. Step 5: Solve for x
    x = 144,612,089.45/13,454.04
  6. Step 6: Final answer
    x = 10,748.60

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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.