Home / 13,761.04-18,990.17-7,473.41

Finding the Fourth Proportional to 13,761.04, 18,990.17 and 7,473.41

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Solution

The fourth proportional to 13,761.04, 18,990.17 and 7,473.41 is: 10,313.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.04 : 18,990.17 = 7,473.41 : x
  2. Step 2: Convert to fraction form
    13,761.04/18,990.17 = 7,473.41/x
  3. Step 3: Cross multiply
    13,761.04x = 18,990.17 × 7,473.41
  4. Step 4: Simplify right side
    13,761.04x = 141,921,421.14
  5. Step 5: Solve for x
    x = 141,921,421.14/13,761.04
  6. Step 6: Final answer
    x = 10,313.28

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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.