Home / 13,744.12-18,966.86-7,456.48

Finding the Fourth Proportional to 13,744.12, 18,966.86 and 7,456.48

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Solution

The fourth proportional to 13,744.12, 18,966.86 and 7,456.48 is: 10,289.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744.12 : 18,966.86 = 7,456.48 : x
  2. Step 2: Convert to fraction form
    13,744.12/18,966.86 = 7,456.48/x
  3. Step 3: Cross multiply
    13,744.12x = 18,966.86 × 7,456.48
  4. Step 4: Simplify right side
    13,744.12x = 141,426,012.25
  5. Step 5: Solve for x
    x = 141,426,012.25/13,744.12
  6. Step 6: Final answer
    x = 10,289.93

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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.