Home / 13,695.77-18,897.75-8,392.29

Finding the Fourth Proportional to 13,695.77, 18,897.75 and 8,392.29

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Solution

The fourth proportional to 13,695.77, 18,897.75 and 8,392.29 is: 11,579.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.77 : 18,897.75 = 8,392.29 : x
  2. Step 2: Convert to fraction form
    13,695.77/18,897.75 = 8,392.29/x
  3. Step 3: Cross multiply
    13,695.77x = 18,897.75 × 8,392.29
  4. Step 4: Simplify right side
    13,695.77x = 158,595,398.35
  5. Step 5: Solve for x
    x = 158,595,398.35/13,695.77
  6. Step 6: Final answer
    x = 11,579.89

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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.