Home / 19,410-26,790.12-12,335.04

Finding the Fourth Proportional to 19,410, 26,790.12 and 12,335.04

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Solution

The fourth proportional to 19,410, 26,790.12 and 12,335.04 is: 17,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,410 : 26,790.12 = 12,335.04 : x
  2. Step 2: Convert to fraction form
    19,410/26,790.12 = 12,335.04/x
  3. Step 3: Cross multiply
    19,410x = 26,790.12 × 12,335.04
  4. Step 4: Simplify right side
    19,410x = 330,457,201.80
  5. Step 5: Solve for x
    x = 330,457,201.80/19,410
  6. Step 6: Final answer
    x = 17,025.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.