Home / 13,948.79-19,249.33-7,661.16

Finding the Fourth Proportional to 13,948.79, 19,249.33 and 7,661.16

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Solution

The fourth proportional to 13,948.79, 19,249.33 and 7,661.16 is: 10,572.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.79 : 19,249.33 = 7,661.16 : x
  2. Step 2: Convert to fraction form
    13,948.79/19,249.33 = 7,661.16/x
  3. Step 3: Cross multiply
    13,948.79x = 19,249.33 × 7,661.16
  4. Step 4: Simplify right side
    13,948.79x = 147,472,177.87
  5. Step 5: Solve for x
    x = 147,472,177.87/13,948.79
  6. Step 6: Final answer
    x = 10,572.40

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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.