Home / 12,681.10-19,023.77-4,360.78

Finding the Fourth Proportional to 12,681.10, 19,023.77 and 4,360.78

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Solution

The fourth proportional to 12,681.10, 19,023.77 and 4,360.78 is: 6,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,681.10 : 19,023.77 = 4,360.78 : x
  2. Step 2: Convert to fraction form
    12,681.10/19,023.77 = 4,360.78/x
  3. Step 3: Cross multiply
    12,681.10x = 19,023.77 × 4,360.78
  4. Step 4: Simplify right side
    12,681.10x = 82,958,439.08
  5. Step 5: Solve for x
    x = 82,958,439.08/12,681.10
  6. Step 6: Final answer
    x = 6,541.90

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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.