Home / 19,426.16-29,145.18-8,187.32

Finding the Fourth Proportional to 19,426.16, 29,145.18 and 8,187.32

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Solution

The fourth proportional to 19,426.16, 29,145.18 and 8,187.32 is: 12,283.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,426.16 : 29,145.18 = 8,187.32 : x
  2. Step 2: Convert to fraction form
    19,426.16/29,145.18 = 8,187.32/x
  3. Step 3: Cross multiply
    19,426.16x = 29,145.18 × 8,187.32
  4. Step 4: Simplify right side
    19,426.16x = 238,620,915.12
  5. Step 5: Solve for x
    x = 238,620,915.12/19,426.16
  6. Step 6: Final answer
    x = 12,283.48

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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.