Home / 18,946.93-26,127.40-12,571.29

Finding the Fourth Proportional to 18,946.93, 26,127.40 and 12,571.29

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Solution

The fourth proportional to 18,946.93, 26,127.40 and 12,571.29 is: 17,335.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.93 : 26,127.40 = 12,571.29 : x
  2. Step 2: Convert to fraction form
    18,946.93/26,127.40 = 12,571.29/x
  3. Step 3: Cross multiply
    18,946.93x = 26,127.40 × 12,571.29
  4. Step 4: Simplify right side
    18,946.93x = 328,455,122.35
  5. Step 5: Solve for x
    x = 328,455,122.35/18,946.93
  6. Step 6: Final answer
    x = 17,335.53

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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.