Home / 13,949.11-19,248.63-7,661.48

Finding the Fourth Proportional to 13,949.11, 19,248.63 and 7,661.48

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Solution

The fourth proportional to 13,949.11, 19,248.63 and 7,661.48 is: 10,572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.11 : 19,248.63 = 7,661.48 : x
  2. Step 2: Convert to fraction form
    13,949.11/19,248.63 = 7,661.48/x
  3. Step 3: Cross multiply
    13,949.11x = 19,248.63 × 7,661.48
  4. Step 4: Simplify right side
    13,949.11x = 147,472,993.77
  5. Step 5: Solve for x
    x = 147,472,993.77/13,949.11
  6. Step 6: Final answer
    x = 10,572.22

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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.