Home / 8,787.81-13,160.59-5,028.20

Finding the Fourth Proportional to 8,787.81, 13,160.59 and 5,028.20

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Solution

The fourth proportional to 8,787.81, 13,160.59 and 5,028.20 is: 7,530.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.81 : 13,160.59 = 5,028.20 : x
  2. Step 2: Convert to fraction form
    8,787.81/13,160.59 = 5,028.20/x
  3. Step 3: Cross multiply
    8,787.81x = 13,160.59 × 5,028.20
  4. Step 4: Simplify right side
    8,787.81x = 66,174,077.90
  5. Step 5: Solve for x
    x = 66,174,077.90/8,787.81
  6. Step 6: Final answer
    x = 7,530.21

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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.