Home / 19,513.50-26,940.24-12,810.86

Finding the Fourth Proportional to 19,513.50, 26,940.24 and 12,810.86

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Solution

The fourth proportional to 19,513.50, 26,940.24 and 12,810.86 is: 17,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,513.50 : 26,940.24 = 12,810.86 : x
  2. Step 2: Convert to fraction form
    19,513.50/26,940.24 = 12,810.86/x
  3. Step 3: Cross multiply
    19,513.50x = 26,940.24 × 12,810.86
  4. Step 4: Simplify right side
    19,513.50x = 345,127,508.31
  5. Step 5: Solve for x
    x = 345,127,508.31/19,513.50
  6. Step 6: Final answer
    x = 17,686.60

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1.5x scale

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.