Home / 19,126.80-26,385.89-12,756.33

Finding the Fourth Proportional to 19,126.80, 26,385.89 and 12,756.33

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Solution

The fourth proportional to 19,126.80, 26,385.89 and 12,756.33 is: 17,597.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.80 : 26,385.89 = 12,756.33 : x
  2. Step 2: Convert to fraction form
    19,126.80/26,385.89 = 12,756.33/x
  3. Step 3: Cross multiply
    19,126.80x = 26,385.89 × 12,756.33
  4. Step 4: Simplify right side
    19,126.80x = 336,587,056.40
  5. Step 5: Solve for x
    x = 336,587,056.40/19,126.80
  6. Step 6: Final answer
    x = 17,597.67

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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.