Home / 19,712.34-27,185.27-12,637.38

Finding the Fourth Proportional to 19,712.34, 27,185.27 and 12,637.38

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Solution

The fourth proportional to 19,712.34, 27,185.27 and 12,637.38 is: 17,428.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,712.34 : 27,185.27 = 12,637.38 : x
  2. Step 2: Convert to fraction form
    19,712.34/27,185.27 = 12,637.38/x
  3. Step 3: Cross multiply
    19,712.34x = 27,185.27 × 12,637.38
  4. Step 4: Simplify right side
    19,712.34x = 343,550,587.39
  5. Step 5: Solve for x
    x = 343,550,587.39/19,712.34
  6. Step 6: Final answer
    x = 17,428.20

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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.