Home / 13,501.17-18,644.49-12,764.88

Finding the Fourth Proportional to 13,501.17, 18,644.49 and 12,764.88

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Solution

The fourth proportional to 13,501.17, 18,644.49 and 12,764.88 is: 17,627.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501.17 : 18,644.49 = 12,764.88 : x
  2. Step 2: Convert to fraction form
    13,501.17/18,644.49 = 12,764.88/x
  3. Step 3: Cross multiply
    13,501.17x = 18,644.49 × 12,764.88
  4. Step 4: Simplify right side
    13,501.17x = 237,994,677.51
  5. Step 5: Solve for x
    x = 237,994,677.51/13,501.17
  6. Step 6: Final answer
    x = 17,627.71

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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.