Home / 12,320.25-18,483.30-4,000.29

Finding the Fourth Proportional to 12,320.25, 18,483.30 and 4,000.29

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Solution

The fourth proportional to 12,320.25, 18,483.30 and 4,000.29 is: 6,001.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.25 : 18,483.30 = 4,000.29 : x
  2. Step 2: Convert to fraction form
    12,320.25/18,483.30 = 4,000.29/x
  3. Step 3: Cross multiply
    12,320.25x = 18,483.30 × 4,000.29
  4. Step 4: Simplify right side
    12,320.25x = 73,938,560.16
  5. Step 5: Solve for x
    x = 73,938,560.16/12,320.25
  6. Step 6: Final answer
    x = 6,001.38

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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.