Home / 19,396.08-26,762.40-12,691.50

Finding the Fourth Proportional to 19,396.08, 26,762.40 and 12,691.50

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Solution

The fourth proportional to 19,396.08, 26,762.40 and 12,691.50 is: 17,511.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,396.08 : 26,762.40 = 12,691.50 : x
  2. Step 2: Convert to fraction form
    19,396.08/26,762.40 = 12,691.50/x
  3. Step 3: Cross multiply
    19,396.08x = 26,762.40 × 12,691.50
  4. Step 4: Simplify right side
    19,396.08x = 339,654,999.60
  5. Step 5: Solve for x
    x = 339,654,999.60/19,396.08
  6. Step 6: Final answer
    x = 17,511.53

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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.