Home / 12,008.32-18,012.54-3,688.24

Finding the Fourth Proportional to 12,008.32, 18,012.54 and 3,688.24

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Solution

The fourth proportional to 12,008.32, 18,012.54 and 3,688.24 is: 5,532.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,008.32 : 18,012.54 = 3,688.24 : x
  2. Step 2: Convert to fraction form
    12,008.32/18,012.54 = 3,688.24/x
  3. Step 3: Cross multiply
    12,008.32x = 18,012.54 × 3,688.24
  4. Step 4: Simplify right side
    12,008.32x = 66,434,570.53
  5. Step 5: Solve for x
    x = 66,434,570.53/12,008.32
  6. Step 6: Final answer
    x = 5,532.38

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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.