Home / 13,945.63-19,248.51-7,979.17

Finding the Fourth Proportional to 13,945.63, 19,248.51 and 7,979.17

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Solution

The fourth proportional to 13,945.63, 19,248.51 and 7,979.17 is: 11,013.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.63 : 19,248.51 = 7,979.17 : x
  2. Step 2: Convert to fraction form
    13,945.63/19,248.51 = 7,979.17/x
  3. Step 3: Cross multiply
    13,945.63x = 19,248.51 × 7,979.17
  4. Step 4: Simplify right side
    13,945.63x = 153,587,133.54
  5. Step 5: Solve for x
    x = 153,587,133.54/13,945.63
  6. Step 6: Final answer
    x = 11,013.28

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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.