Home / 13,940.18-19,237.13-7,566.78

Finding the Fourth Proportional to 13,940.18, 19,237.13 and 7,566.78

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Solution

The fourth proportional to 13,940.18, 19,237.13 and 7,566.78 is: 10,441.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.18 : 19,237.13 = 7,566.78 : x
  2. Step 2: Convert to fraction form
    13,940.18/19,237.13 = 7,566.78/x
  3. Step 3: Cross multiply
    13,940.18x = 19,237.13 × 7,566.78
  4. Step 4: Simplify right side
    13,940.18x = 145,563,149.46
  5. Step 5: Solve for x
    x = 145,563,149.46/13,940.18
  6. Step 6: Final answer
    x = 10,441.98

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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.