Home / 19,409.05-26,776.05-12,331.67

Finding the Fourth Proportional to 19,409.05, 26,776.05 and 12,331.67

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Solution

The fourth proportional to 19,409.05, 26,776.05 and 12,331.67 is: 17,012.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,409.05 : 26,776.05 = 12,331.67 : x
  2. Step 2: Convert to fraction form
    19,409.05/26,776.05 = 12,331.67/x
  3. Step 3: Cross multiply
    19,409.05x = 26,776.05 × 12,331.67
  4. Step 4: Simplify right side
    19,409.05x = 330,193,412.50
  5. Step 5: Solve for x
    x = 330,193,412.50/19,409.05
  6. Step 6: Final answer
    x = 17,012.35

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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.