Home / 13,206.90-18,227.67-7,541.70

Finding the Fourth Proportional to 13,206.90, 18,227.67 and 7,541.70

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Solution

The fourth proportional to 13,206.90, 18,227.67 and 7,541.70 is: 10,408.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.90 : 18,227.67 = 7,541.70 : x
  2. Step 2: Convert to fraction form
    13,206.90/18,227.67 = 7,541.70/x
  3. Step 3: Cross multiply
    13,206.90x = 18,227.67 × 7,541.70
  4. Step 4: Simplify right side
    13,206.90x = 137,467,618.84
  5. Step 5: Solve for x
    x = 137,467,618.84/13,206.90
  6. Step 6: Final answer
    x = 10,408.77

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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.