Home / 13,140.06-19,710.10-7,934.94

Finding the Fourth Proportional to 13,140.06, 19,710.10 and 7,934.94

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Solution

The fourth proportional to 13,140.06, 19,710.10 and 7,934.94 is: 11,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140.06 : 19,710.10 = 7,934.94 : x
  2. Step 2: Convert to fraction form
    13,140.06/19,710.10 = 7,934.94/x
  3. Step 3: Cross multiply
    13,140.06x = 19,710.10 × 7,934.94
  4. Step 4: Simplify right side
    13,140.06x = 156,398,460.89
  5. Step 5: Solve for x
    x = 156,398,460.89/13,140.06
  6. Step 6: Final answer
    x = 11,902.42

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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.