Home / 12,909.46-19,347.18-5,114.02

Finding the Fourth Proportional to 12,909.46, 19,347.18 and 5,114.02

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Solution

The fourth proportional to 12,909.46, 19,347.18 and 5,114.02 is: 7,664.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909.46 : 19,347.18 = 5,114.02 : x
  2. Step 2: Convert to fraction form
    12,909.46/19,347.18 = 5,114.02/x
  3. Step 3: Cross multiply
    12,909.46x = 19,347.18 × 5,114.02
  4. Step 4: Simplify right side
    12,909.46x = 98,941,865.46
  5. Step 5: Solve for x
    x = 98,941,865.46/12,909.46
  6. Step 6: Final answer
    x = 7,664.29

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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.