Home / 8,009.28-12,002.40-4,539.20

Finding the Fourth Proportional to 8,009.28, 12,002.40 and 4,539.20

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Solution

The fourth proportional to 8,009.28, 12,002.40 and 4,539.20 is: 6,802.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,009.28 : 12,002.40 = 4,539.20 : x
  2. Step 2: Convert to fraction form
    8,009.28/12,002.40 = 4,539.20/x
  3. Step 3: Cross multiply
    8,009.28x = 12,002.40 × 4,539.20
  4. Step 4: Simplify right side
    8,009.28x = 54,481,294.08
  5. Step 5: Solve for x
    x = 54,481,294.08/8,009.28
  6. Step 6: Final answer
    x = 6,802.27

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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.