Home / 8,988.88-13,485.20-3,065.28

Finding the Fourth Proportional to 8,988.88, 13,485.20 and 3,065.28

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Solution

The fourth proportional to 8,988.88, 13,485.20 and 3,065.28 is: 4,598.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.88 : 13,485.20 = 3,065.28 : x
  2. Step 2: Convert to fraction form
    8,988.88/13,485.20 = 3,065.28/x
  3. Step 3: Cross multiply
    8,988.88x = 13,485.20 × 3,065.28
  4. Step 4: Simplify right side
    8,988.88x = 41,335,913.86
  5. Step 5: Solve for x
    x = 41,335,913.86/8,988.88
  6. Step 6: Final answer
    x = 4,598.56

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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.