Home / 19,397.98-26,762.20-12,687.44

Finding the Fourth Proportional to 19,397.98, 26,762.20 and 12,687.44

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Solution

The fourth proportional to 19,397.98, 26,762.20 and 12,687.44 is: 17,504.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,397.98 : 26,762.20 = 12,687.44 : x
  2. Step 2: Convert to fraction form
    19,397.98/26,762.20 = 12,687.44/x
  3. Step 3: Cross multiply
    19,397.98x = 26,762.20 × 12,687.44
  4. Step 4: Simplify right side
    19,397.98x = 339,543,641.24
  5. Step 5: Solve for x
    x = 339,543,641.24/19,397.98
  6. Step 6: Final answer
    x = 17,504.07

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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.