Home / 8,756.31-13,130.58-3,208.20

Finding the Fourth Proportional to 8,756.31, 13,130.58 and 3,208.20

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Solution

The fourth proportional to 8,756.31, 13,130.58 and 3,208.20 is: 4,810.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.31 : 13,130.58 = 3,208.20 : x
  2. Step 2: Convert to fraction form
    8,756.31/13,130.58 = 3,208.20/x
  3. Step 3: Cross multiply
    8,756.31x = 13,130.58 × 3,208.20
  4. Step 4: Simplify right side
    8,756.31x = 42,125,526.76
  5. Step 5: Solve for x
    x = 42,125,526.76/8,756.31
  6. Step 6: Final answer
    x = 4,810.88

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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.