Home / 12,219.02-18,314.36-5,631.36

Finding the Fourth Proportional to 12,219.02, 18,314.36 and 5,631.36

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Solution

The fourth proportional to 12,219.02, 18,314.36 and 5,631.36 is: 8,440.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.02 : 18,314.36 = 5,631.36 : x
  2. Step 2: Convert to fraction form
    12,219.02/18,314.36 = 5,631.36/x
  3. Step 3: Cross multiply
    12,219.02x = 18,314.36 × 5,631.36
  4. Step 4: Simplify right side
    12,219.02x = 103,134,754.33
  5. Step 5: Solve for x
    x = 103,134,754.33/12,219.02
  6. Step 6: Final answer
    x = 8,440.51

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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.