Home / 19,756.82-27,256.20-12,948.98

Finding the Fourth Proportional to 19,756.82, 27,256.20 and 12,948.98

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Solution

The fourth proportional to 19,756.82, 27,256.20 and 12,948.98 is: 17,864.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,756.82 : 27,256.20 = 12,948.98 : x
  2. Step 2: Convert to fraction form
    19,756.82/27,256.20 = 12,948.98/x
  3. Step 3: Cross multiply
    19,756.82x = 27,256.20 × 12,948.98
  4. Step 4: Simplify right side
    19,756.82x = 352,939,988.68
  5. Step 5: Solve for x
    x = 352,939,988.68/19,756.82
  6. Step 6: Final answer
    x = 17,864.21

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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.