Home / 18,947.75-26,147.90-10,564.25

Finding the Fourth Proportional to 18,947.75, 26,147.90 and 10,564.25

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Solution

The fourth proportional to 18,947.75, 26,147.90 and 10,564.25 is: 14,578.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.75 : 26,147.90 = 10,564.25 : x
  2. Step 2: Convert to fraction form
    18,947.75/26,147.90 = 10,564.25/x
  3. Step 3: Cross multiply
    18,947.75x = 26,147.90 × 10,564.25
  4. Step 4: Simplify right side
    18,947.75x = 276,232,899.75
  5. Step 5: Solve for x
    x = 276,232,899.75/18,947.75
  6. Step 6: Final answer
    x = 14,578.67

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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.