Home / 19,126.66-26,403.78-12,763.84

Finding the Fourth Proportional to 19,126.66, 26,403.78 and 12,763.84

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Solution

The fourth proportional to 19,126.66, 26,403.78 and 12,763.84 is: 17,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.66 : 26,403.78 = 12,763.84 : x
  2. Step 2: Convert to fraction form
    19,126.66/26,403.78 = 12,763.84/x
  3. Step 3: Cross multiply
    19,126.66x = 26,403.78 × 12,763.84
  4. Step 4: Simplify right side
    19,126.66x = 337,013,623.32
  5. Step 5: Solve for x
    x = 337,013,623.32/19,126.66
  6. Step 6: Final answer
    x = 17,620.10

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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.