Home / 18,795.60-25,936.12-11,240.40

Finding the Fourth Proportional to 18,795.60, 25,936.12 and 11,240.40

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Solution

The fourth proportional to 18,795.60, 25,936.12 and 11,240.40 is: 15,510.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.60 : 25,936.12 = 11,240.40 : x
  2. Step 2: Convert to fraction form
    18,795.60/25,936.12 = 11,240.40/x
  3. Step 3: Cross multiply
    18,795.60x = 25,936.12 × 11,240.40
  4. Step 4: Simplify right side
    18,795.60x = 291,532,363.25
  5. Step 5: Solve for x
    x = 291,532,363.25/18,795.60
  6. Step 6: Final answer
    x = 15,510.67

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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.