Home / 8,744.28-12,056.60-7,145.02

Finding the Fourth Proportional to 8,744.28, 12,056.60 and 7,145.02

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Solution

The fourth proportional to 8,744.28, 12,056.60 and 7,145.02 is: 9,851.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,744.28 : 12,056.60 = 7,145.02 : x
  2. Step 2: Convert to fraction form
    8,744.28/12,056.60 = 7,145.02/x
  3. Step 3: Cross multiply
    8,744.28x = 12,056.60 × 7,145.02
  4. Step 4: Simplify right side
    8,744.28x = 86,144,648.13
  5. Step 5: Solve for x
    x = 86,144,648.13/8,744.28
  6. Step 6: Final answer
    x = 9,851.54

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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.