Home / 13,541.35-20,302.75-7,217.17

Finding the Fourth Proportional to 13,541.35, 20,302.75 and 7,217.17

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Solution

The fourth proportional to 13,541.35, 20,302.75 and 7,217.17 is: 10,820.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.35 : 20,302.75 = 7,217.17 : x
  2. Step 2: Convert to fraction form
    13,541.35/20,302.75 = 7,217.17/x
  3. Step 3: Cross multiply
    13,541.35x = 20,302.75 × 7,217.17
  4. Step 4: Simplify right side
    13,541.35x = 146,528,398.22
  5. Step 5: Solve for x
    x = 146,528,398.22/13,541.35
  6. Step 6: Final answer
    x = 10,820.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.