Home / 26,407.10-39,617.10-8,638.79

Finding the Fourth Proportional to 26,407.10, 39,617.10 and 8,638.79

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Solution

The fourth proportional to 26,407.10, 39,617.10 and 8,638.79 is: 12,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,407.10 : 39,617.10 = 8,638.79 : x
  2. Step 2: Convert to fraction form
    26,407.10/39,617.10 = 8,638.79/x
  3. Step 3: Cross multiply
    26,407.10x = 39,617.10 × 8,638.79
  4. Step 4: Simplify right side
    26,407.10x = 342,243,807.31
  5. Step 5: Solve for x
    x = 342,243,807.31/26,407.10
  6. Step 6: Final answer
    x = 12,960.30

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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.