Home / 13,864.78-19,133.45-7,577.29

Finding the Fourth Proportional to 13,864.78, 19,133.45 and 7,577.29

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Solution

The fourth proportional to 13,864.78, 19,133.45 and 7,577.29 is: 10,456.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.78 : 19,133.45 = 7,577.29 : x
  2. Step 2: Convert to fraction form
    13,864.78/19,133.45 = 7,577.29/x
  3. Step 3: Cross multiply
    13,864.78x = 19,133.45 × 7,577.29
  4. Step 4: Simplify right side
    13,864.78x = 144,979,699.35
  5. Step 5: Solve for x
    x = 144,979,699.35/13,864.78
  6. Step 6: Final answer
    x = 10,456.69

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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.