Home / 12,156.40-18,227.30-4,752.03

Finding the Fourth Proportional to 12,156.40, 18,227.30 and 4,752.03

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Solution

The fourth proportional to 12,156.40, 18,227.30 and 4,752.03 is: 7,125.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.40 : 18,227.30 = 4,752.03 : x
  2. Step 2: Convert to fraction form
    12,156.40/18,227.30 = 4,752.03/x
  3. Step 3: Cross multiply
    12,156.40x = 18,227.30 × 4,752.03
  4. Step 4: Simplify right side
    12,156.40x = 86,616,688.30
  5. Step 5: Solve for x
    x = 86,616,688.30/12,156.40
  6. Step 6: Final answer
    x = 7,125.19

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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.