Home / 13,434.06-18,541.35-12,843.66

Finding the Fourth Proportional to 13,434.06, 18,541.35 and 12,843.66

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Solution

The fourth proportional to 13,434.06, 18,541.35 and 12,843.66 is: 17,726.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.06 : 18,541.35 = 12,843.66 : x
  2. Step 2: Convert to fraction form
    13,434.06/18,541.35 = 12,843.66/x
  3. Step 3: Cross multiply
    13,434.06x = 18,541.35 × 12,843.66
  4. Step 4: Simplify right side
    13,434.06x = 238,138,795.34
  5. Step 5: Solve for x
    x = 238,138,795.34/13,434.06
  6. Step 6: Final answer
    x = 17,726.49

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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.