Home / 12,563.04-18,821.28-6,315.84

Finding the Fourth Proportional to 12,563.04, 18,821.28 and 6,315.84

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Solution

The fourth proportional to 12,563.04, 18,821.28 and 6,315.84 is: 9,462.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563.04 : 18,821.28 = 6,315.84 : x
  2. Step 2: Convert to fraction form
    12,563.04/18,821.28 = 6,315.84/x
  3. Step 3: Cross multiply
    12,563.04x = 18,821.28 × 6,315.84
  4. Step 4: Simplify right side
    12,563.04x = 118,872,193.08
  5. Step 5: Solve for x
    x = 118,872,193.08/12,563.04
  6. Step 6: Final answer
    x = 9,462.06

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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.