Home / 13,971.80-19,280.31-7,598.38

Finding the Fourth Proportional to 13,971.80, 19,280.31 and 7,598.38

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Solution

The fourth proportional to 13,971.80, 19,280.31 and 7,598.38 is: 10,485.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.80 : 19,280.31 = 7,598.38 : x
  2. Step 2: Convert to fraction form
    13,971.80/19,280.31 = 7,598.38/x
  3. Step 3: Cross multiply
    13,971.80x = 19,280.31 × 7,598.38
  4. Step 4: Simplify right side
    13,971.80x = 146,499,121.90
  5. Step 5: Solve for x
    x = 146,499,121.90/13,971.80
  6. Step 6: Final answer
    x = 10,485.34

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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.