Home / 12,483.36-18,730.58-5,907.78

Finding the Fourth Proportional to 12,483.36, 18,730.58 and 5,907.78

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Solution

The fourth proportional to 12,483.36, 18,730.58 and 5,907.78 is: 8,864.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,483.36 : 18,730.58 = 5,907.78 : x
  2. Step 2: Convert to fraction form
    12,483.36/18,730.58 = 5,907.78/x
  3. Step 3: Cross multiply
    12,483.36x = 18,730.58 × 5,907.78
  4. Step 4: Simplify right side
    12,483.36x = 110,656,116.37
  5. Step 5: Solve for x
    x = 110,656,116.37/12,483.36
  6. Step 6: Final answer
    x = 8,864.29

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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.