Home / 18,553.07-25,637.14-13,508.49

Finding the Fourth Proportional to 18,553.07, 25,637.14 and 13,508.49

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Solution

The fourth proportional to 18,553.07, 25,637.14 and 13,508.49 is: 18,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.07 : 25,637.14 = 13,508.49 : x
  2. Step 2: Convert to fraction form
    18,553.07/25,637.14 = 13,508.49/x
  3. Step 3: Cross multiply
    18,553.07x = 25,637.14 × 13,508.49
  4. Step 4: Simplify right side
    18,553.07x = 346,319,018.13
  5. Step 5: Solve for x
    x = 346,319,018.13/18,553.07
  6. Step 6: Final answer
    x = 18,666.40

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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.