Home / 13,980.50-19,293.21-7,607.15

Finding the Fourth Proportional to 13,980.50, 19,293.21 and 7,607.15

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Solution

The fourth proportional to 13,980.50, 19,293.21 and 7,607.15 is: 10,497.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.50 : 19,293.21 = 7,607.15 : x
  2. Step 2: Convert to fraction form
    13,980.50/19,293.21 = 7,607.15/x
  3. Step 3: Cross multiply
    13,980.50x = 19,293.21 × 7,607.15
  4. Step 4: Simplify right side
    13,980.50x = 146,766,245.99
  5. Step 5: Solve for x
    x = 146,766,245.99/13,980.50
  6. Step 6: Final answer
    x = 10,497.93

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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.