Home / 12,029.60-18,038.96-5,455.52

Finding the Fourth Proportional to 12,029.60, 18,038.96 and 5,455.52

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Solution

The fourth proportional to 12,029.60, 18,038.96 and 5,455.52 is: 8,180.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,029.60 : 18,038.96 = 5,455.52 : x
  2. Step 2: Convert to fraction form
    12,029.60/18,038.96 = 5,455.52/x
  3. Step 3: Cross multiply
    12,029.60x = 18,038.96 × 5,455.52
  4. Step 4: Simplify right side
    12,029.60x = 98,411,907.06
  5. Step 5: Solve for x
    x = 98,411,907.06/12,029.60
  6. Step 6: Final answer
    x = 8,180.81

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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.